Evaluate the algebraic expression for the given value of the variable.

Question

-4,x^2-18= -10

Please check my answer

Answer 1

add 18 to both sides, take the square root to each side to find x

Answer 2

add 18 to both sides, take the square root to each side to find x.

Please show me how.

Answer 3

Please show me how this is my first time learning algebra.

Answer 4

It says to evaluate.

Therefore, just put the -4 in for the x^2 and simplify.
(-4)^2 - 18 simplifies 16 -18 simplifies to -2

If this is an expression there should not be an = sign. I am assuming the -10 wouldn't be there.