Question

Solve x2 − 3x = 28. HELP ME (:

Answer 1

x^2 -3x=28

x^2-3x-28=0

factor

(x )(x )=0

think of two number that add up to -3 and multiply to -28

Answer 2

what two number multiples to be 28?

Answer 3

ok, one second. @modphysnoob

Answer 4

-7, and 4

Answer 5

@modphysnoob

Answer 6

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

Answer 7

good job

Answer 8

yep, -7+4=-3
-7*4=-28

Answer 9

haha thanks @nader1

Answer 10

so you'd get here
(x-7)(x+4)=0

from here , we can deduce that
x=7,-4

Answer 11

thanks doe