Question

7x2 + 35x - 252 = 0

Answer 1

i guess u need to factorise this. Am I right?

Answer 2

yes.
but im not really sure how.

Answer 3

I would first take the 7 out to get 7(x^2 + 5x - 36)

Answer 4

Now what times what = - 36 but adds up to 5? 4 and -9 so it factors out to be 7(x+4)(x-9)

Answer 5

A. -4
B. -7
C. 4
D. 9
E. -9
F. 252
those are all the chose and i have to pick two .
soo 7 and 4?

Answer 6

Quadratic formula\[x=(-b \pm \sqrt{b^2-4ac})\div 2a\]

Answer 7

thanks :)