(8x^2-8x)-(9x^2-2x+6)=0

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Solution for (8x^2-8x)-(9x^2-2x+6)=0 equation:


Simplifying
(8x2 + -8x) + -1(9x2 + -2x + 6) = 0

Reorder the terms:
(-8x + 8x2) + -1(9x2 + -2x + 6) = 0

Remove parenthesis around (-8x + 8x2)
-8x + 8x2 + -1(9x2 + -2x + 6) = 0

Reorder the terms:
-8x + 8x2 + -1(6 + -2x + 9x2) = 0
-8x + 8x2 + (6 * -1 + -2x * -1 + 9x2 * -1) = 0
-8x + 8x2 + (-6 + 2x + -9x2) = 0

Reorder the terms:
-6 + -8x + 2x + 8x2 + -9x2 = 0

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

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

Solving
-6 + -6x + -1x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(6 + 6x + x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(6 + 6x + x2)' equal to zero and attempt to solve: Simplifying 6 + 6x + x2 = 0 Solving 6 + 6x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-6' to each side of the equation. 6 + 6x + -6 + x2 = 0 + -6 Reorder the terms: 6 + -6 + 6x + x2 = 0 + -6 Combine like terms: 6 + -6 = 0 0 + 6x + x2 = 0 + -6 6x + x2 = 0 + -6 Combine like terms: 0 + -6 = -6 6x + x2 = -6 The x term is 6x. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6x + 9 + x2 = -6 + 9 Reorder the terms: 9 + 6x + x2 = -6 + 9 Combine like terms: -6 + 9 = 3 9 + 6x + x2 = 3 Factor a perfect square on the left side: (x + 3)(x + 3) = 3 Calculate the square root of the right side: 1.732050808 Break this problem into two subproblems by setting (x + 3) equal to 1.732050808 and -1.732050808.

Subproblem 1

x + 3 = 1.732050808 Simplifying x + 3 = 1.732050808 Reorder the terms: 3 + x = 1.732050808 Solving 3 + x = 1.732050808 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 1.732050808 + -3 Combine like terms: 3 + -3 = 0 0 + x = 1.732050808 + -3 x = 1.732050808 + -3 Combine like terms: 1.732050808 + -3 = -1.267949192 x = -1.267949192 Simplifying x = -1.267949192

Subproblem 2

x + 3 = -1.732050808 Simplifying x + 3 = -1.732050808 Reorder the terms: 3 + x = -1.732050808 Solving 3 + x = -1.732050808 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -1.732050808 + -3 Combine like terms: 3 + -3 = 0 0 + x = -1.732050808 + -3 x = -1.732050808 + -3 Combine like terms: -1.732050808 + -3 = -4.732050808 x = -4.732050808 Simplifying x = -4.732050808

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.267949192, -4.732050808}

Solution

x = {-1.267949192, -4.732050808}

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