70=(x*x+2*2)

Solution for 70=(x*x+2*2) equation:

Simplifying
70 = (x * x + 2 * 2)

Multiply x * x
70 = (x2 + 2 * 2)

Multiply 2 * 2
70 = (x2 + 4)

Reorder the terms:
70 = (4 + x2)

Remove parenthesis around (4 + x2)
70 = 4 + x2

Solving
70 = 4 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
70 + -1x2 = 4 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
70 + -1x2 = 4 + 0
70 + -1x2 = 4

Add '-70' to each side of the equation.
70 + -70 + -1x2 = 4 + -70

Combine like terms: 70 + -70 = 0
0 + -1x2 = 4 + -70
-1x2 = 4 + -70

Combine like terms: 4 + -70 = -66
-1x2 = -66

Divide each side by '-1'.
x2 = 66

Simplifying
x2 = 66

Take the square root of each side:
x = {-8.124038405, 8.124038405}