Can someone please help me with this math question?
Please? I will fan and give a medal!!

Question

Can someone please help me with this math question?
Please? I will fan and give a medal!!

abbycross167 · Answer

Please help me to simplify this rational expression - 
(4x^2-6x-18)                (x^2+1)
------------     *     -----------
      (x+1)                     (x^2-6x+9)

wilsondanielle · Answer

Start by smooshing them together! 

I'll do the numerator, you do the denominator. 

$$\frac{ (4x ^{2} -6x -18)(x ^{2} +1) }{ denominator }$$

abbycross167 · Answer

(4x^2−6x−18)(x^2+1)
-----------------
(x-1)(x^2-6x+9)

wilsondanielle · Answer

Perfect. Next we have to factor the other polynomials - which one do you want to do first?

abbycross167 · Answer

Top?

wilsondanielle · Answer

the 4x^2.... one?

abbycross167 · Answer

Yes ma'am

wilsondanielle · Answer

let's do a box method for it. I'll start it off for you : 

|dw:1464056166570:dw|

What's next?

abbycross167 · Answer

find the factors of 4 and -18?

wilsondanielle · Answer

not quite - you're going to multiply, and find the factors of the product.

wilsondanielle · Answer

are you sure you have all the signs right? I've worked ahead and i'm not seeing anything that cancels out...

abbycross167 · Answer

Yes ma'am I wrote it right

wilsondanielle · Answer

then unless they just want you to break it into factors, there's not much simplification you can do beyond multiplying the two together...

abbycross167 · Answer

Oh I'm not sure it said to simplify completely