(x+5)(x)=2(x+5)(x-2)+70

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Solution for (x+5)(x)=2(x+5)(x-2)+70 equation:


Simplifying
(x + 5)(x) = 2(x + 5)(x + -2) + 70

Reorder the terms:
(5 + x)(x) = 2(x + 5)(x + -2) + 70

Reorder the terms for easier multiplication:
x(5 + x) = 2(x + 5)(x + -2) + 70
(5 * x + x * x) = 2(x + 5)(x + -2) + 70
(5x + x2) = 2(x + 5)(x + -2) + 70

Reorder the terms:
5x + x2 = 2(5 + x)(x + -2) + 70

Reorder the terms:
5x + x2 = 2(5 + x)(-2 + x) + 70

Multiply (5 + x) * (-2 + x)
5x + x2 = 2(5(-2 + x) + x(-2 + x)) + 70
5x + x2 = 2((-2 * 5 + x * 5) + x(-2 + x)) + 70
5x + x2 = 2((-10 + 5x) + x(-2 + x)) + 70
5x + x2 = 2(-10 + 5x + (-2 * x + x * x)) + 70
5x + x2 = 2(-10 + 5x + (-2x + x2)) + 70

Combine like terms: 5x + -2x = 3x
5x + x2 = 2(-10 + 3x + x2) + 70
5x + x2 = (-10 * 2 + 3x * 2 + x2 * 2) + 70
5x + x2 = (-20 + 6x + 2x2) + 70

Reorder the terms:
5x + x2 = -20 + 70 + 6x + 2x2

Combine like terms: -20 + 70 = 50
5x + x2 = 50 + 6x + 2x2

Solving
5x + x2 = 50 + 6x + 2x2

Solving for variable 'x'.

Reorder the terms:
-50 + 5x + -6x + x2 + -2x2 = 50 + 6x + 2x2 + -50 + -6x + -2x2

Combine like terms: 5x + -6x = -1x
-50 + -1x + x2 + -2x2 = 50 + 6x + 2x2 + -50 + -6x + -2x2

Combine like terms: x2 + -2x2 = -1x2
-50 + -1x + -1x2 = 50 + 6x + 2x2 + -50 + -6x + -2x2

Reorder the terms:
-50 + -1x + -1x2 = 50 + -50 + 6x + -6x + 2x2 + -2x2

Combine like terms: 50 + -50 = 0
-50 + -1x + -1x2 = 0 + 6x + -6x + 2x2 + -2x2
-50 + -1x + -1x2 = 6x + -6x + 2x2 + -2x2

Combine like terms: 6x + -6x = 0
-50 + -1x + -1x2 = 0 + 2x2 + -2x2
-50 + -1x + -1x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-50 + -1x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(50 + x + x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(50 + x + x2)' equal to zero and attempt to solve: Simplifying 50 + x + x2 = 0 Solving 50 + x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-50' to each side of the equation. 50 + x + -50 + x2 = 0 + -50 Reorder the terms: 50 + -50 + x + x2 = 0 + -50 Combine like terms: 50 + -50 = 0 0 + x + x2 = 0 + -50 x + x2 = 0 + -50 Combine like terms: 0 + -50 = -50 x + x2 = -50 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. x + 0.25 + x2 = -50 + 0.25 Reorder the terms: 0.25 + x + x2 = -50 + 0.25 Combine like terms: -50 + 0.25 = -49.75 0.25 + x + x2 = -49.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -49.75 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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