Question

help

Answer 1

@AloneS

Answer 2

wait which one u chose?

Answer 3

When it says x^2=256.
you can take the square-root on both sides and get the solution.

Answer 4

im confused

Answer 5

so its b @mathmate ?

Answer 6

Yes.

Answer 7

Yes, that's correct.
Next step?

Answer 8

@narissa
In case you're not used to it, the next step is to check your answer.
How?
By putting the solution(s) back into the equation and see if it works.
Here, we have
x^2=(+16)^2=256
x^2=(-16)^2=(-1)^2*(16)^2=256
So yes, +16 and -16 are the solutions.
Note also:
A second degree equation (e.g. x^2) has a maximum of 2 (real) solutions. So that also gives another check.

Answer 9

thanks

Answer 10

You're welcome! :)