-8x+5x^2=8+-5x^2

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


Simplifying
-8x + 5x2 = 8 + -5x2

Solving
-8x + 5x2 = 8 + -5x2

Solving for variable 'x'.

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

Combine like terms: 5x2 + 5x2 = 10x2
-8 + -8x + 10x2 = 8 + -5x2 + -8 + 5x2

Reorder the terms:
-8 + -8x + 10x2 = 8 + -8 + -5x2 + 5x2

Combine like terms: 8 + -8 = 0
-8 + -8x + 10x2 = 0 + -5x2 + 5x2
-8 + -8x + 10x2 = -5x2 + 5x2

Combine like terms: -5x2 + 5x2 = 0
-8 + -8x + 10x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-4 + -4x + 5x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-4 + -4x + 5x2)' equal to zero and attempt to solve: Simplifying -4 + -4x + 5x2 = 0 Solving -4 + -4x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -0.8 + -0.8x + x2 = 0 Move the constant term to the right: Add '0.8' to each side of the equation. -0.8 + -0.8x + 0.8 + x2 = 0 + 0.8 Reorder the terms: -0.8 + 0.8 + -0.8x + x2 = 0 + 0.8 Combine like terms: -0.8 + 0.8 = 0.0 0.0 + -0.8x + x2 = 0 + 0.8 -0.8x + x2 = 0 + 0.8 Combine like terms: 0 + 0.8 = 0.8 -0.8x + x2 = 0.8 The x term is -0.8x. Take half its coefficient (-0.4). Square it (0.16) and add it to both sides. Add '0.16' to each side of the equation. -0.8x + 0.16 + x2 = 0.8 + 0.16 Reorder the terms: 0.16 + -0.8x + x2 = 0.8 + 0.16 Combine like terms: 0.8 + 0.16 = 0.96 0.16 + -0.8x + x2 = 0.96 Factor a perfect square on the left side: (x + -0.4)(x + -0.4) = 0.96 Calculate the square root of the right side: 0.979795897 Break this problem into two subproblems by setting (x + -0.4) equal to 0.979795897 and -0.979795897.

Subproblem 1

x + -0.4 = 0.979795897 Simplifying x + -0.4 = 0.979795897 Reorder the terms: -0.4 + x = 0.979795897 Solving -0.4 + x = 0.979795897 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + x = 0.979795897 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + x = 0.979795897 + 0.4 x = 0.979795897 + 0.4 Combine like terms: 0.979795897 + 0.4 = 1.379795897 x = 1.379795897 Simplifying x = 1.379795897

Subproblem 2

x + -0.4 = -0.979795897 Simplifying x + -0.4 = -0.979795897 Reorder the terms: -0.4 + x = -0.979795897 Solving -0.4 + x = -0.979795897 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4' to each side of the equation. -0.4 + 0.4 + x = -0.979795897 + 0.4 Combine like terms: -0.4 + 0.4 = 0.0 0.0 + x = -0.979795897 + 0.4 x = -0.979795897 + 0.4 Combine like terms: -0.979795897 + 0.4 = -0.579795897 x = -0.579795897 Simplifying x = -0.579795897

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.379795897, -0.579795897}

Solution

x = {1.379795897, -0.579795897}

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