Question

factor 4x^2-25x-56

Answer 1

look at the factors of 4 and then look at the factors of -56
and then determine what combination of the factors are equal to -25

if anyone has a simplier explanation then feel free to say so

Answer 2

i think the factorization will look ugly..

Answer 3

It won't be

Answer 4

my bad..

Answer 5

use \[D= -b \pm \sqrt{(b^2-4ac)}/2a\]

Answer 6

you'll get factor

Answer 7

4x^2-25x-56

Hint:
Split the middle term to get
4x^2 - 32x + 7x - 56

Factor first two and last to terms to get:
4x(x-8) + 7(x-8)

Factor out x - 8 common to both terms to get:
(x-8)(4x+7)