6x^2-31x+28=-4x^2+9x-2

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Solution for 6x^2-31x+28=-4x^2+9x-2 equation:


Simplifying
6x2 + -31x + 28 = -4x2 + 9x + -2

Reorder the terms:
28 + -31x + 6x2 = -4x2 + 9x + -2

Reorder the terms:
28 + -31x + 6x2 = -2 + 9x + -4x2

Solving
28 + -31x + 6x2 = -2 + 9x + -4x2

Solving for variable 'x'.

Reorder the terms:
28 + 2 + -31x + -9x + 6x2 + 4x2 = -2 + 9x + -4x2 + 2 + -9x + 4x2

Combine like terms: 28 + 2 = 30
30 + -31x + -9x + 6x2 + 4x2 = -2 + 9x + -4x2 + 2 + -9x + 4x2

Combine like terms: -31x + -9x = -40x
30 + -40x + 6x2 + 4x2 = -2 + 9x + -4x2 + 2 + -9x + 4x2

Combine like terms: 6x2 + 4x2 = 10x2
30 + -40x + 10x2 = -2 + 9x + -4x2 + 2 + -9x + 4x2

Reorder the terms:
30 + -40x + 10x2 = -2 + 2 + 9x + -9x + -4x2 + 4x2

Combine like terms: -2 + 2 = 0
30 + -40x + 10x2 = 0 + 9x + -9x + -4x2 + 4x2
30 + -40x + 10x2 = 9x + -9x + -4x2 + 4x2

Combine like terms: 9x + -9x = 0
30 + -40x + 10x2 = 0 + -4x2 + 4x2
30 + -40x + 10x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
30 + -40x + 10x2 = 0

Factor out the Greatest Common Factor (GCF), '10'.
10(3 + -4x + x2) = 0

Factor a trinomial.
10((1 + -1x)(3 + -1x)) = 0

Ignore the factor 10.

Subproblem 1

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 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 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {1, 3}

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