Question

Determine the values of x in the equation x² = 81.

x=-9
x=19
x=plus or minus 40.5
x=40.5​

Answer 1

The values of x in the equation x² = 81 are x = -9, x = 9, x = -40.5, and x = 40.5.

Answer 2

x=-9

Explanation:

x=square root 81

x= 9 or -9