945=(12x-15)(12x-2)

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Solution for 945=(12x-15)(12x-2) equation:


Simplifying
945 = (12x + -15)(12x + -2)

Reorder the terms:
945 = (-15 + 12x)(12x + -2)

Reorder the terms:
945 = (-15 + 12x)(-2 + 12x)

Multiply (-15 + 12x) * (-2 + 12x)
945 = (-15(-2 + 12x) + 12x * (-2 + 12x))
945 = ((-2 * -15 + 12x * -15) + 12x * (-2 + 12x))
945 = ((30 + -180x) + 12x * (-2 + 12x))
945 = (30 + -180x + (-2 * 12x + 12x * 12x))
945 = (30 + -180x + (-24x + 144x2))

Combine like terms: -180x + -24x = -204x
945 = (30 + -204x + 144x2)

Solving
945 = 30 + -204x + 144x2

Solving for variable 'x'.

Combine like terms: 945 + -30 = 915
915 + 204x + -144x2 = 30 + -204x + 144x2 + -30 + 204x + -144x2

Reorder the terms:
915 + 204x + -144x2 = 30 + -30 + -204x + 204x + 144x2 + -144x2

Combine like terms: 30 + -30 = 0
915 + 204x + -144x2 = 0 + -204x + 204x + 144x2 + -144x2
915 + 204x + -144x2 = -204x + 204x + 144x2 + -144x2

Combine like terms: -204x + 204x = 0
915 + 204x + -144x2 = 0 + 144x2 + -144x2
915 + 204x + -144x2 = 144x2 + -144x2

Combine like terms: 144x2 + -144x2 = 0
915 + 204x + -144x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(305 + 68x + -48x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(305 + 68x + -48x2)' equal to zero and attempt to solve: Simplifying 305 + 68x + -48x2 = 0 Solving 305 + 68x + -48x2 = 0 Begin completing the square. Divide all terms by -48 the coefficient of the squared term: Divide each side by '-48'. -6.354166667 + -1.416666667x + x2 = 0 Move the constant term to the right: Add '6.354166667' to each side of the equation. -6.354166667 + -1.416666667x + 6.354166667 + x2 = 0 + 6.354166667 Reorder the terms: -6.354166667 + 6.354166667 + -1.416666667x + x2 = 0 + 6.354166667 Combine like terms: -6.354166667 + 6.354166667 = 0.000000000 0.000000000 + -1.416666667x + x2 = 0 + 6.354166667 -1.416666667x + x2 = 0 + 6.354166667 Combine like terms: 0 + 6.354166667 = 6.354166667 -1.416666667x + x2 = 6.354166667 The x term is -1.416666667x. Take half its coefficient (-0.7083333335). Square it (0.5017361113) and add it to both sides. Add '0.5017361113' to each side of the equation. -1.416666667x + 0.5017361113 + x2 = 6.354166667 + 0.5017361113 Reorder the terms: 0.5017361113 + -1.416666667x + x2 = 6.354166667 + 0.5017361113 Combine like terms: 6.354166667 + 0.5017361113 = 6.8559027783 0.5017361113 + -1.416666667x + x2 = 6.8559027783 Factor a perfect square on the left side: (x + -0.7083333335)(x + -0.7083333335) = 6.8559027783 Calculate the square root of the right side: 2.618377891 Break this problem into two subproblems by setting (x + -0.7083333335) equal to 2.618377891 and -2.618377891.

Subproblem 1

x + -0.7083333335 = 2.618377891 Simplifying x + -0.7083333335 = 2.618377891 Reorder the terms: -0.7083333335 + x = 2.618377891 Solving -0.7083333335 + x = 2.618377891 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7083333335' to each side of the equation. -0.7083333335 + 0.7083333335 + x = 2.618377891 + 0.7083333335 Combine like terms: -0.7083333335 + 0.7083333335 = 0.0000000000 0.0000000000 + x = 2.618377891 + 0.7083333335 x = 2.618377891 + 0.7083333335 Combine like terms: 2.618377891 + 0.7083333335 = 3.3267112245 x = 3.3267112245 Simplifying x = 3.3267112245

Subproblem 2

x + -0.7083333335 = -2.618377891 Simplifying x + -0.7083333335 = -2.618377891 Reorder the terms: -0.7083333335 + x = -2.618377891 Solving -0.7083333335 + x = -2.618377891 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.7083333335' to each side of the equation. -0.7083333335 + 0.7083333335 + x = -2.618377891 + 0.7083333335 Combine like terms: -0.7083333335 + 0.7083333335 = 0.0000000000 0.0000000000 + x = -2.618377891 + 0.7083333335 x = -2.618377891 + 0.7083333335 Combine like terms: -2.618377891 + 0.7083333335 = -1.9100445575 x = -1.9100445575 Simplifying x = -1.9100445575

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.3267112245, -1.9100445575}

Solution

x = {3.3267112245, -1.9100445575}

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