162=36x-(2x*2x)

Solution for 162=36x-(2x*2x) equation:

Simplifying
162 = 36x + -1(2x * 2x)

Reorder the terms for easier multiplication:
162 = 36x + -1(2 * 2x * x)

Multiply 2 * 2
162 = 36x + -1(4x * x)

Multiply x * x
162 = 36x + -1(4x2)

Remove parenthesis around (4x2)
162 = 36x + -1 * 4x2

Multiply -1 * 4
162 = 36x + -4x2

Solving
162 = 36x + -4x2

Solving for variable 'x'.

Reorder the terms:
162 + -36x + 4x2 = 36x + -36x + -4x2 + 4x2

Combine like terms: 36x + -36x = 0
162 + -36x + 4x2 = 0 + -4x2 + 4x2
162 + -36x + 4x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
162 + -36x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(81 + -18x + 2x2) = 0

Ignore the factor 2.
Subproblem 1
Set the factor '(81 + -18x + 2x2)' equal to zero and attempt to solve:

Simplifying
81 + -18x + 2x2 = 0

Solving
81 + -18x + 2x2 = 0

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
40.5 + -9x + x2 = 0

Move the constant term to the right:

Add '-40.5' to each side of the equation.
40.5 + -9x + -40.5 + x2 = 0 + -40.5

Reorder the terms:
40.5 + -40.5 + -9x + x2 = 0 + -40.5

Combine like terms: 40.5 + -40.5 = 0.0
0.0 + -9x + x2 = 0 + -40.5
-9x + x2 = 0 + -40.5

Combine like terms: 0 + -40.5 = -40.5
-9x + x2 = -40.5

The x term is -9x.  Take half its coefficient (-4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
-9x + 20.25 + x2 = -40.5 + 20.25

Reorder the terms:
20.25 + -9x + x2 = -40.5 + 20.25

Combine like terms: -40.5 + 20.25 = -20.25
20.25 + -9x + x2 = -20.25

Factor a perfect square on the left side:
(x + -4.5)(x + -4.5) = -20.25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

The solution to this equation could not be determined.