Answer:
x= the square root of 7 and the negative square root of 7
Explanation:
basically
x^2=7
can be converted into
x=7^1/2 (^1/2 is another way to say square root or represent square root)
x= 2.645751311 or -2.645751311
negative is included as a negative value to the power of 2 gives a positive value
hope this helps