Question

Solve x^2 + 3x – 4 = 0

I know the formula is supposed to be ax^2+bx+c
but I am a bit confused

Answer 1

This is a case of factoring a quadratic equation into form (x+a)(x+b) = 0.

Answer 2

Where a & b are two numbers that will add to give you +3 and multiply to give you -4, as noted in the original equation. Do you know two numbers like that?

Answer 3

Oh, I got it. Thank's for your help :)