Question

Solve x2 − 3x = 28

Answer 1

change to standard form first
x^2 - 3x - 28 = 0

factor out

(x-7)(x+4) = 0

does that help?

Answer 2

Not really. it doesn't.

Answer 3

lol

Answer 4

haha, so is the answer -4,7 ?

Answer 5

@Igballoste, you never explained HOW you factored anything out.

Answer 6

i assumed she knew how....

Answer 7

x^2 - 3x - 28 = 0
factorise them
x^2-7x+4x-28=0
x(x-7)+4(x-7)=0
(x+4)(x-7)=0
x=-4 , x=-7

Answer 8

I don't agree that x = -7

Answer 9

might wanna recheck that

Answer 10

i think its -4, 7

Answer 11

oh mistake sorry +7 ,-4

Answer 12

okay thank yo

Answer 13

you

Answer 14

ur welcome

Answer 15

thnks @saifoo.khan