PLEASE help me solve this thing, im tried to the stress i need to know how to do this!! :(

Question

anonymous · Answer

$$2/5y ^{2}+1/5y=36/5$$

anonymous · Answer

its a quadratic equation

anonymous · Answer

Have you learned about the quadratic equation in your class yet?

anonymous · Answer

yes, its the last part that kills me :(

anonymous · Answer

$$y = (-b \pm \sqrt{b^2 - 4ac})/(2a)$$

anonymous · Answer

In order to solve, use that formula. Get your equation into a standard setup by subtracting 36/5. This will leave you with:
$$2/5y^2 + 1/5y - 36/5 = 0$$

2/5 = a
1/5 = b
-36/5 = c

anonymous · Answer

i try and get rid of fractions first, it bugs me

anonymous · Answer

so it would be 2, 1, and 36

anonymous · Answer

-36

anonymous · Answer

Sometimes you just have to deal with it, math is annoying like that sometimes ;)

Keep in mind that the formula I gave you will give you two answers.

anonymous · Answer

I know i need two :)  its the last part with factoring that bothers me

anonymous · Answer

I just wasn't sure if you knew or not :p.

The equation works whether or not you factor. Sometimes, you just can't factor. 

If you take calculus, things get 10x crazier. I get lost in those problems sometimes. Just gotta roll with the punches :)

anonymous · Answer

im horrid at this, so thats gonna really suck :(

anonymous · Answer

If you stick around a minute, I can figure out if there's a way to factor. For these problems, I just learned to go straight to the quadratic formula.

anonymous · Answer

ok, please hurry if you can, i have to get this homework done soon, i dont have a good internet signal at home

anonymous · Answer

You can actually factor out (1/5) in this problem. That will leave you with:
$$(1/5)( 2y^2 + 1x + 36 )=0$$
multiply each side by  5
$$2y^2 + 1x + 36 = 0$$

Although, I'm not completely certain this will give you the same answer. I'm pretty sure that by factoring out the denominator, you get a different answer

anonymous · Answer

that should be -36, by the way. Not +36.

anonymous · Answer

I got 4 and -4.5, which is altogether different from the original answer. I would personally go with your first answers, but it's up to you to make that decision.

anonymous · Answer

thats not what it wants tho

asnaseer · Answer

$$2x^2+x-36=0$$$$(x-4)(2x+9)=0$$so:$$x=4$$or$$x=-\frac{9}{2}=-4.5$$

anonymous · Answer

omg thank you!!! *cries*

asnaseer · Answer

:-)