# How do you factor #2(x^2) + 9x + 7#?

##### 2 Answers

May 13, 2018

so

We know seven is a prime number so its only factors are 7 and 1 therefore we know our final answer will look something like this:

(?x+7)(?x+1)

We also know that 2 is a prime number therefore our x coefficients will be 2 and 1.

we know that

and

so to get our

So to times 7 by 1 we put 1 in the opposite bracket, and then do the same for 1 and 2.

So the final answer is:

(2x+7)(x+1)

May 13, 2018

Since a - b + c = 0, use shortcut.

a. One real root x = -1 --> factor (x + 1)

b. One real roots

Factored form of y --> y = a(x - x1)(x - x2)