2x^2+3-8x^2-5x+6-x=

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Solution for 2x^2+3-8x^2-5x+6-x= equation:


Simplifying
2x2 + 3 + -8x2 + -5x + 6 + -1x = 0

Reorder the terms:
3 + 6 + -5x + -1x + 2x2 + -8x2 = 0

Combine like terms: 3 + 6 = 9
9 + -5x + -1x + 2x2 + -8x2 = 0

Combine like terms: -5x + -1x = -6x
9 + -6x + 2x2 + -8x2 = 0

Combine like terms: 2x2 + -8x2 = -6x2
9 + -6x + -6x2 = 0

Solving
9 + -6x + -6x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(3 + -2x + -2x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(3 + -2x + -2x2)' equal to zero and attempt to solve: Simplifying 3 + -2x + -2x2 = 0 Solving 3 + -2x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -1.5 + x + x2 = 0 Move the constant term to the right: Add '1.5' to each side of the equation. -1.5 + x + 1.5 + x2 = 0 + 1.5 Reorder the terms: -1.5 + 1.5 + x + x2 = 0 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x + x2 = 0 + 1.5 x + x2 = 0 + 1.5 Combine like terms: 0 + 1.5 = 1.5 x + x2 = 1.5 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. + 0.25 + x2 = 1.5 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + x2 = 1.5 + 0.25 Combine like terms: 1.5 + 0.25 = 1.75 1.25 + x2 = 1.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 1.75 Calculate the square root of the right side: 1.322875656 Break this problem into two subproblems by setting (x + 0.5) equal to 1.322875656 and -1.322875656.

Subproblem 1

x + 0.5 = 1.322875656 Simplifying x + 0.5 = 1.322875656 Reorder the terms: 0.5 + x = 1.322875656 Solving 0.5 + x = 1.322875656 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 1.322875656 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 1.322875656 + -0.5 x = 1.322875656 + -0.5 Combine like terms: 1.322875656 + -0.5 = 0.822875656 x = 0.822875656 Simplifying x = 0.822875656

Subproblem 2

x + 0.5 = -1.322875656 Simplifying x + 0.5 = -1.322875656 Reorder the terms: 0.5 + x = -1.322875656 Solving 0.5 + x = -1.322875656 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -1.322875656 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -1.322875656 + -0.5 x = -1.322875656 + -0.5 Combine like terms: -1.322875656 + -0.5 = -1.822875656 x = -1.822875656 Simplifying x = -1.822875656

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.822875656, -1.822875656}

Solution

x = {0.822875656, -1.822875656}

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