2x^2=8x-128

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Solution for 2x^2=8x-128 equation:


Simplifying
2x2 = 8x + -128

Reorder the terms:
2x2 = -128 + 8x

Solving
2x2 = -128 + 8x

Solving for variable 'x'.

Reorder the terms:
128 + -8x + 2x2 = -128 + 8x + 128 + -8x

Reorder the terms:
128 + -8x + 2x2 = -128 + 128 + 8x + -8x

Combine like terms: -128 + 128 = 0
128 + -8x + 2x2 = 0 + 8x + -8x
128 + -8x + 2x2 = 8x + -8x

Combine like terms: 8x + -8x = 0
128 + -8x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(64 + -4x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(64 + -4x + x2)' equal to zero and attempt to solve: Simplifying 64 + -4x + x2 = 0 Solving 64 + -4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-64' to each side of the equation. 64 + -4x + -64 + x2 = 0 + -64 Reorder the terms: 64 + -64 + -4x + x2 = 0 + -64 Combine like terms: 64 + -64 = 0 0 + -4x + x2 = 0 + -64 -4x + x2 = 0 + -64 Combine like terms: 0 + -64 = -64 -4x + x2 = -64 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = -64 + 4 Reorder the terms: 4 + -4x + x2 = -64 + 4 Combine like terms: -64 + 4 = -60 4 + -4x + x2 = -60 Factor a perfect square on the left side: (x + -2)(x + -2) = -60 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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