9*8=2x*2x+4

Solution for 9*8=2x*2x+4 equation:

Simplifying
9 * 8 = 2x * 2x + 4

Multiply 9 * 8
72 = 2x * 2x + 4

Reorder the terms for easier multiplication:
72 = 2 * 2x * x + 4

Multiply 2 * 2
72 = 4x * x + 4

Multiply x * x
72 = 4x2 + 4

Reorder the terms:
72 = 4 + 4x2

Solving
72 = 4 + 4x2

Solving for variable 'x'.

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

Add '-4x2' to each side of the equation.
72 + -4x2 = 4 + 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
72 + -4x2 = 4 + 0
72 + -4x2 = 4

Add '-72' to each side of the equation.
72 + -72 + -4x2 = 4 + -72

Combine like terms: 72 + -72 = 0
0 + -4x2 = 4 + -72
-4x2 = 4 + -72

Combine like terms: 4 + -72 = -68
-4x2 = -68

Divide each side by '-4'.
x2 = 17

Simplifying
x2 = 17

Take the square root of each side:
x = {-4.123105626, 4.123105626}