Question

HELP ME PLEASE!!!
Solve the equation x^2 = 64 for x
I got the answer 8 but i'm not sure if that's wright.
@skullpatrol

Answer 1

@mathstudent55

Answer 2

\[x^2 = 64 \implies x = \pm 8\]

Answer 3

so is it 32?

Answer 4

@iambatman

Answer 5

\(\pm\) means plus minus
\(\pm8\) is defined as \(+8,-8\)

Answer 6

to see why, test what is \((-8)^2\)

Answer 7

Sorry to confuse you donnie, yes what jenny said :)

Answer 8

its 64

Answer 9

@jenny1994 so would the answer be -8,8

Answer 10

batman gave you your answer, it's \pm8 or 8,-8
if you're only given positive choices, then it's just 8

Answer 11

lol that's what I thought it was since the begging