7x^2-64x+64=-2x^2-91x+46

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Solution for 7x^2-64x+64=-2x^2-91x+46 equation:


Simplifying
7x2 + -64x + 64 = -2x2 + -91x + 46

Reorder the terms:
64 + -64x + 7x2 = -2x2 + -91x + 46

Reorder the terms:
64 + -64x + 7x2 = 46 + -91x + -2x2

Solving
64 + -64x + 7x2 = 46 + -91x + -2x2

Solving for variable 'x'.

Reorder the terms:
64 + -46 + -64x + 91x + 7x2 + 2x2 = 46 + -91x + -2x2 + -46 + 91x + 2x2

Combine like terms: 64 + -46 = 18
18 + -64x + 91x + 7x2 + 2x2 = 46 + -91x + -2x2 + -46 + 91x + 2x2

Combine like terms: -64x + 91x = 27x
18 + 27x + 7x2 + 2x2 = 46 + -91x + -2x2 + -46 + 91x + 2x2

Combine like terms: 7x2 + 2x2 = 9x2
18 + 27x + 9x2 = 46 + -91x + -2x2 + -46 + 91x + 2x2

Reorder the terms:
18 + 27x + 9x2 = 46 + -46 + -91x + 91x + -2x2 + 2x2

Combine like terms: 46 + -46 = 0
18 + 27x + 9x2 = 0 + -91x + 91x + -2x2 + 2x2
18 + 27x + 9x2 = -91x + 91x + -2x2 + 2x2

Combine like terms: -91x + 91x = 0
18 + 27x + 9x2 = 0 + -2x2 + 2x2
18 + 27x + 9x2 = -2x2 + 2x2

Combine like terms: -2x2 + 2x2 = 0
18 + 27x + 9x2 = 0

Factor out the Greatest Common Factor (GCF), '9'.
9(2 + 3x + x2) = 0

Factor a trinomial.
9((2 + x)(1 + x)) = 0

Ignore the factor 9.

Subproblem 1

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 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 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Subproblem 2

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

Solution

x = {-2, -1}

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