Question

Which choice is the solution to the equation?
(x-2)^2=16
a. x= -3 or x=2
b. x=1 or x=2
c. x=4 or x=2
d. x= -2 or x=6

Answer 1

its d

Answer 2

d

Answer 3

D

Answer 4

to do that you multiply out the brackets
so (x-2)(x-2)

you'd get x^2-4x+4=16
you -16 to move it to the other side
and you'd get
x^2-4x-12

Answer 5

from there you factorise
getting (x+2)(x-6)

Answer 6

Thank you everyone!