7x^2-6x-11=-x^2-2x+13

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Solution for 7x^2-6x-11=-x^2-2x+13 equation:


Simplifying
7x2 + -6x + -11 = -1x2 + -2x + 13

Reorder the terms:
-11 + -6x + 7x2 = -1x2 + -2x + 13

Reorder the terms:
-11 + -6x + 7x2 = 13 + -2x + -1x2

Solving
-11 + -6x + 7x2 = 13 + -2x + -1x2

Solving for variable 'x'.

Reorder the terms:
-11 + -13 + -6x + 2x + 7x2 + x2 = 13 + -2x + -1x2 + -13 + 2x + x2

Combine like terms: -11 + -13 = -24
-24 + -6x + 2x + 7x2 + x2 = 13 + -2x + -1x2 + -13 + 2x + x2

Combine like terms: -6x + 2x = -4x
-24 + -4x + 7x2 + x2 = 13 + -2x + -1x2 + -13 + 2x + x2

Combine like terms: 7x2 + x2 = 8x2
-24 + -4x + 8x2 = 13 + -2x + -1x2 + -13 + 2x + x2

Reorder the terms:
-24 + -4x + 8x2 = 13 + -13 + -2x + 2x + -1x2 + x2

Combine like terms: 13 + -13 = 0
-24 + -4x + 8x2 = 0 + -2x + 2x + -1x2 + x2
-24 + -4x + 8x2 = -2x + 2x + -1x2 + x2

Combine like terms: -2x + 2x = 0
-24 + -4x + 8x2 = 0 + -1x2 + x2
-24 + -4x + 8x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-24 + -4x + 8x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-6 + -1x + 2x2) = 0

Factor a trinomial.
4((-3 + -2x)(2 + -1x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-3 + -2x)' equal to zero and attempt to solve: Simplifying -3 + -2x = 0 Solving -3 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -2x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -2x = 0 + 3 -2x = 0 + 3 Combine like terms: 0 + 3 = 3 -2x = 3 Divide each side by '-2'. x = -1.5 Simplifying x = -1.5

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-1.5, 2}

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