12x-36-15x^2-15=6x-6

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Solution for 12x-36-15x^2-15=6x-6 equation:


Simplifying
12x + -36 + -15x2 + -15 = 6x + -6

Reorder the terms:
-36 + -15 + 12x + -15x2 = 6x + -6

Combine like terms: -36 + -15 = -51
-51 + 12x + -15x2 = 6x + -6

Reorder the terms:
-51 + 12x + -15x2 = -6 + 6x

Solving
-51 + 12x + -15x2 = -6 + 6x

Solving for variable 'x'.

Reorder the terms:
-51 + 6 + 12x + -6x + -15x2 = -6 + 6x + 6 + -6x

Combine like terms: -51 + 6 = -45
-45 + 12x + -6x + -15x2 = -6 + 6x + 6 + -6x

Combine like terms: 12x + -6x = 6x
-45 + 6x + -15x2 = -6 + 6x + 6 + -6x

Reorder the terms:
-45 + 6x + -15x2 = -6 + 6 + 6x + -6x

Combine like terms: -6 + 6 = 0
-45 + 6x + -15x2 = 0 + 6x + -6x
-45 + 6x + -15x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
-45 + 6x + -15x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-15 + 2x + -5x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-15 + 2x + -5x2)' equal to zero and attempt to solve: Simplifying -15 + 2x + -5x2 = 0 Solving -15 + 2x + -5x2 = 0 Begin completing the square. Divide all terms by -5 the coefficient of the squared term: Divide each side by '-5'. 3 + -0.4x + x2 = 0 Move the constant term to the right: Add '-3' to each side of the equation. 3 + -0.4x + -3 + x2 = 0 + -3 Reorder the terms: 3 + -3 + -0.4x + x2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -0.4x + x2 = 0 + -3 -0.4x + x2 = 0 + -3 Combine like terms: 0 + -3 = -3 -0.4x + x2 = -3 The x term is -0.4x. Take half its coefficient (-0.2). Square it (0.04) and add it to both sides. Add '0.04' to each side of the equation. -0.4x + 0.04 + x2 = -3 + 0.04 Reorder the terms: 0.04 + -0.4x + x2 = -3 + 0.04 Combine like terms: -3 + 0.04 = -2.96 0.04 + -0.4x + x2 = -2.96 Factor a perfect square on the left side: (x + -0.2)(x + -0.2) = -2.96 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.

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