x(x)-9(9)=16

Solution for x(x)-9(9)=16 equation:

Simplifying
x(x) + -9(9) = 16

Multiply x * x
x2 + -9(9) = 16

Multiply -9 * 9
x2 + -81 = 16

Reorder the terms:
-81 + x2 = 16

Solving
-81 + x2 = 16

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '81' to each side of the equation.
-81 + 81 + x2 = 16 + 81

Combine like terms: -81 + 81 = 0
0 + x2 = 16 + 81
x2 = 16 + 81

Combine like terms: 16 + 81 = 97
x2 = 97

Simplifying
x2 = 97

Take the square root of each side:
x = {-9.848857802, 9.848857802}