12=(.5)((x)(x))(.7)

Solution for 12=(.5)((x)(x))(.7) equation:

Simplifying
12 = (0.5)((x)(x))(0.7)

Multiply x * x
12 = 0.5(x2)(0.7)

Reorder the terms for easier multiplication:
12 = 0.5 * 0.7x2

Multiply 0.5 * 0.7
12 = 0.35x2

Solving
12 = 0.35x2

Solving for variable 'x'.

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

Add '-0.35x2' to each side of the equation.
12 + -0.35x2 = 0.35x2 + -0.35x2

Combine like terms: 0.35x2 + -0.35x2 = 0.00
12 + -0.35x2 = 0.00

Add '-12' to each side of the equation.
12 + -12 + -0.35x2 = 0.00 + -12

Combine like terms: 12 + -12 = 0
0 + -0.35x2 = 0.00 + -12
-0.35x2 = 0.00 + -12

Combine like terms: 0.00 + -12 = -12
-0.35x2 = -12

Divide each side by '-0.35'.
x2 = 34.28571429

Simplifying
x2 = 34.28571429

Take the square root of each side:
x = {-5.855400438, 5.855400438}