(4x^2-8x)-(5x^2+5x)=2

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Solution for (4x^2-8x)-(5x^2+5x)=2 equation:


Simplifying
(4x2 + -8x) + -1(5x2 + 5x) = 2

Reorder the terms:
(-8x + 4x2) + -1(5x2 + 5x) = 2

Remove parenthesis around (-8x + 4x2)
-8x + 4x2 + -1(5x2 + 5x) = 2

Reorder the terms:
-8x + 4x2 + -1(5x + 5x2) = 2
-8x + 4x2 + (5x * -1 + 5x2 * -1) = 2
-8x + 4x2 + (-5x + -5x2) = 2

Reorder the terms:
-8x + -5x + 4x2 + -5x2 = 2

Combine like terms: -8x + -5x = -13x
-13x + 4x2 + -5x2 = 2

Combine like terms: 4x2 + -5x2 = -1x2
-13x + -1x2 = 2

Solving
-13x + -1x2 = 2

Solving for variable 'x'.

Reorder the terms:
-2 + -13x + -1x2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + -13x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(2 + 13x + x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(2 + 13x + x2)' equal to zero and attempt to solve: Simplifying 2 + 13x + x2 = 0 Solving 2 + 13x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-2' to each side of the equation. 2 + 13x + -2 + x2 = 0 + -2 Reorder the terms: 2 + -2 + 13x + x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 13x + x2 = 0 + -2 13x + x2 = 0 + -2 Combine like terms: 0 + -2 = -2 13x + x2 = -2 The x term is 13x. Take half its coefficient (6.5). Square it (42.25) and add it to both sides. Add '42.25' to each side of the equation. 13x + 42.25 + x2 = -2 + 42.25 Reorder the terms: 42.25 + 13x + x2 = -2 + 42.25 Combine like terms: -2 + 42.25 = 40.25 42.25 + 13x + x2 = 40.25 Factor a perfect square on the left side: (x + 6.5)(x + 6.5) = 40.25 Calculate the square root of the right side: 6.34428877 Break this problem into two subproblems by setting (x + 6.5) equal to 6.34428877 and -6.34428877.

Subproblem 1

x + 6.5 = 6.34428877 Simplifying x + 6.5 = 6.34428877 Reorder the terms: 6.5 + x = 6.34428877 Solving 6.5 + x = 6.34428877 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + x = 6.34428877 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = 6.34428877 + -6.5 x = 6.34428877 + -6.5 Combine like terms: 6.34428877 + -6.5 = -0.15571123 x = -0.15571123 Simplifying x = -0.15571123

Subproblem 2

x + 6.5 = -6.34428877 Simplifying x + 6.5 = -6.34428877 Reorder the terms: 6.5 + x = -6.34428877 Solving 6.5 + x = -6.34428877 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + x = -6.34428877 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + x = -6.34428877 + -6.5 x = -6.34428877 + -6.5 Combine like terms: -6.34428877 + -6.5 = -12.84428877 x = -12.84428877 Simplifying x = -12.84428877

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.15571123, -12.84428877}

Solution

x = {-0.15571123, -12.84428877}

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