Question

solvex x2=4

Answer 1

x=2

Answer 2

Assuming you mean x^2. What's the opposite of raising a number to a power?

Answer 3

hihi gives one solution
is there another I wonder?

Answer 4

or if you mean \[x ^{2} =4\]
then ,it is x=2 or x=-2

Answer 5

well, if its x * 2=4, x is 2. if its x^2= 4 then x=-2

Answer 6

Hmm. Almost. A squared value has two roots, since squaring either the negative or the positive equivalent of the root will give the same answer.

Answer 7

(As myininaya hinted at and Callisto demonstrated.)