3 recurring

post nudes.

(2x-1)(x+4), hence .5 and -4

>>2217862
What they said, 0.5 and -4, except I used the quadratic equation because factoring is for pussies.

>>2217881
FUCK THAT FACTORING FOR LIFE.

>>2217838
underage b&

mootblox

It still bugs me that they never taught me what ^ means. What is it?

>HAI GUIZE HELP ME OUT WITH MAH HOMEWORK
Fix'd

>>2217881
Quadratic equation is pretty damn homo, you must admit. I would factor that anyday.

>>2217897
I was smart enough to figure out how to weasel out of every math course after Algebra II, I can't remember shit.

>>2217900
>HAl GUIZE HELP ME OUT WlTH MAH HOMEWORK AND GET NOODZ

fixed that for you, Lort of the Tripfags.

quadratic formula grrrrl. No need to get naked. im gay and happy to help...
a(plus/minus)square root(b^2-4ac)/4
-7(plus/minus)square root(49-32)/4

your answers are: 1/2 OR -4

>>2217897
it's a code symbol for 7

>>2217897

Exponential power.

"2x^2" is X squared times two.

2x^2 + 7x -4
2x^2 + 8x - x - 4
2x(x + 4) - 1(x + 4)
(2x - 1)(x + 4)
x = { 1/2, -4 }

>>2217897
lol, it's how to type exponents

>>2217908
Dude I weaseled out right before Algebra II after Geometry and that's why I don't know this shit.

wait. how the FUCK did i end up in r9k!!!!! GOD DAMNIT

-3

Naked chick please

>>2217897
Seriously?
n^m (or n**m) means n is the base and m is the expoent.

Are you in 8th grade or something?

>>2217950
Well, it IS a reasonably nice ass. I suppose that's alright.

Can you give us some more trivial math questions though? It makes me feel smart to do shit like this in my head.

Hah. REAL men use the quartic formula. The following three pics are related, because this is only the first solution.

this is year 12 work in NZ.

im 17.>>2217948

OH GOD THIS POST IS RELATED TO ONE PREVIOUS TO THE CURRENT POSTING OF WHICH IS POSTED PART TWO

THE SAME IS RELATED TO YET AGAIN A PAST RELATION PART THREE OF FOUR

NO TECKST LESS POASTZ NAO OH NO HERES THE LAST ONE

>>2217930

There is no end to your failure. I can beyond time and space....

>>2217969
Fuck, and here I thought living on the third-world sucked. At least I learnt that on 8th grade. Enjoy your shit education.

>>2217978
>>2217974
>>2217968

faggot making problem look more complicated than it actually is.

>>2217967
only if u post nudes

6x - 4 < 3x - 12
solve daht shit

>>2218006
x < 3.6666666
There. done.

>>2218037
some working perhaps?
god im dumb.

>>2217968
>>2217970
>>2217974
>>2217978

So these can be solved for the solutions of a fourth-degree polynomial or what?

>>2218037

what, no. it's
x < - 2.6

I got 2.6rep.

>>2218058
big cunty maffs thing is big and cunty

>>2218058
Yes, provided you divided through by the coefficient of the first term.
That is,

ax^4 + bx^3 + cx^2 + dx + e becomes

x^4 + ax^3 + bx^2 + cx + d
where a is b/a, b is c/a, c is d/a, and d is e/a

>>2217900

^^ blockyourmotherniggerfaggot

sorry. yea. 8/3...

solve complex math problem or just type "redtube" in google...


HUUUM, I WONDER WHICH IS THE EASIER WAY TO SEE PUSSY???

>>2217881
>>2217862
correct.

nudes pl0x

>>2218162

its the feeling of acomplishment that counts

>>2218184

read your post again, then go lookat yourself in the mirror.

feeling accomplished?

>>2218184
wut

MUTEBLOXXAR

>>2218223
Considering the fact that the very act of being able to solve those problems can net him large amount of money.

Then yes, he has every right to feel accomplished.

factorize 4x^2 + 5x - 6

>>2217969

Seriously, what does it take to get a kid banned in this place?

>>2218331
No idea, do we even have mods here?

>>2218331
grow a penis plox.

>>2218329
4x^2 + 5x - 6
4x^2 + 8x - 3x - 6
4x(x+2) - 3(x+2)
(4x - 3) (x + 2)
(x = 3/4) (x = -2)

sage because I'm tired and I don't want to do this anymore

log A + Log B - Log B^2

simplify.

i fucking hate logs.
anyone know what the fuck use they are anyway?

>>2218623
Log (A/B)

They're just as useful as anything else in math.

If you are too lazy to learn basic math, you might as well start using the right tools: http://www.sagemath.org/

>>2218789
i don't believe you.

and is that awnser right?
wher'd the exponent go?

Simplify and write your answer with positive indices: (2x^2)^-3

this one is just stupid

>>2218828
log A + Log B - Log B^2 = log A + log B - 2*log B = log A - log B = log (A/B) Considering they have the same base.

That's not naked.

>>2218623
Medfag here, we need them to calculate membrane potentials for example.

>>2218863
sounds interesting. what the fuck is that?

mhm. ive actually got an exam on this shit tomorrow.
mabey i shouldn't have slept in class the last year.

you can get average naked bitchs anywhere. im going for something different.

some private jailbaitz

>>2218623
They make life INCREDIBLY more easy in calculus so you don't have to deal with HUGE FUCKING MASSIVE AS HELL derivatives/integrals.

>>2218894
Since biological cells have a different concentration of certain ions (kalium, sodium, chloride etc) on the inside than on the outside (extracellular matrix, the liquid that surrounds cells), there's a difference not only in that concentration but in voltage as well. This difference is called membrane potential.

Don't ask me how to calculate it though, I could look it up but CBA right now.

We are learning this right now but we won't need it in our everyday practice later on.

>>2218623
Computer engineering fag here. Anything measured in Decibels is logarithmic: gain, power levels, voltage levels. Also, solving exponential growth/decay functions: capacitor discharge, compounding interest in bank accounts, half-lifes of materials.

They show up in a lot of different places, actually.

>>2218940
>>2218925
fuuck.
sounds like i needah be respectin' mah logs.

Do you people even know what fucking Quickmath is? Go to quickmath.com, motherfuckers. Fucking bookmark it, so I won't have to see any more of those dumb-ass threads.

>>2217838

Add up the number of times X appears:

2x^2 = 4 x
7x = 7 x (duh)
total number of x = 11

As to get 0 you must take away 4 from 11x this means:

11x = 4

so to get the value of x divide 4 by 11

4/11= 0.3636363636

the 36 after the decimal point reoccurs to infinity however.

>>2219022
No, I haven't heard of it to this day.
Damn, this site would've spared me a lot of time and trouble back in school.

>>2219026
>2x^2 = 4 x
That's not how math works!

A zookeeper spends $133.10 altogether on bananas and nuts for the monkeys.
He buys 8 kilograms more bananas than nuts.
Bananas cost $2.20 per kilogram and nuts cost $4.80 per kilogram.
How many kilograms of bananas did the zookeeper buy?
You must show the equations that you use to solve the problem.

lul.
bananas and nuts

>>2219049
q_b*c_b+q_n*c_n = 133.10
q_b=q_n+8
c_b = 2.20; c_n = 4.80

(q_n+8)*c_b+q_n*c_n = 133.10
(q_n+8)*2.20+q_n*4.80 = 133.10
2.20*q_n+8*2.20+q_n*4.80 = 133.10
7*q_n + 17.6 = 133.10
7*q_n = 115.5
q_n = 16.5 (kg)


q_b = q_n+8
q_n = 16.5
q_b = 16.5+8
q_b = 24.5 (kg)

24.5 kilograms of bananas and that's terrible.

>>2219110
what the fuck is all that working.

(2x+3)(x-2)(x+1)
i keep getting this fuck wrong.
i multiply the first by the second. and then those by the 3rd. WHY IS IT WRONG!?

>>2219135
All that working cause I broke down ALL the steps.

(2x+3)(x-2)(x+1)
[(2x+3)(x-2)](x+1)
[2x^2+3x-4x-6](x+1)
(2x^2-x-6)(x+1)
2x^3-x^2-6x + 2x^2-x-6
2x^3+2x^2-7x-6

Ammiright?

guys I'm having problems getting my controller working right for this two degree of freedom inverted pendulum problem, anyone here good with matlab?

I'm trying state-variable feedback. In lower gain settings, the cart will just drift to the right until the actuator effort gets way too large and then it just gives up. If I try increasing the gain settings, the cart goes unstable with feedback vibrations.

halp

>>2217968
REAL men know why there isn't a quintic formula.

>>2219220
But can they see why kids love the taste of Cinnamon Toast Crunch?

>>2219218
Use a PID?

okay, next question: x^3=x+1

>>2219262
PD was here
PID is loser

>>2220148
1.324717958

Logarithms are used in everyday life quite a bit.
The Richter and pH scales are both logarithmic, for example.

>>2219220
Tell us about Bring Radicals, oh enlightened one. Or REAL man, whatever.

>>2220175
And decibels

>>2220158

derp herp, i can use a calculator too but what is the exact value?

there are two complex roots as well, since you can see from the curve that there is only one real root

>>2217950

GET. OFF. 4CHAN. NOW.