Question

Which of the following are solutions to the equation below?

Check all that apply.

x2 - 2x = 24

Answer 1

A. x = 6
B. x = -4
C. x = -3
D. x = -6
E. x = 4
F. x = 3

Answer 2

how do i do this problem?

Answer 3

do i just plug x in?

Answer 4

yes you can just plug x in and see if the equation is true
plug in 6
6^2 - 2(6) = 36 - 12 = 24 true
plug in -4
(-4)^2 - 2(-4) = 16+8 = 24 true

you can also try to factorize the equation if you know
it would be
x2 - 2x = 24
x2 - 2x -24 = 0
(x-6)(x+4)= 0
so x=6 or x=-4

Answer 5

Alright, thanks.

Answer 6

glad to help :)