13x^2+21x=-5x^2+3x

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Solution for 13x^2+21x=-5x^2+3x equation:


Simplifying
13x2 + 21x = -5x2 + 3x

Reorder the terms:
21x + 13x2 = -5x2 + 3x

Reorder the terms:
21x + 13x2 = 3x + -5x2

Solving
21x + 13x2 = 3x + -5x2

Solving for variable 'x'.

Reorder the terms:
21x + -3x + 13x2 + 5x2 = 3x + -5x2 + -3x + 5x2

Combine like terms: 21x + -3x = 18x
18x + 13x2 + 5x2 = 3x + -5x2 + -3x + 5x2

Combine like terms: 13x2 + 5x2 = 18x2
18x + 18x2 = 3x + -5x2 + -3x + 5x2

Reorder the terms:
18x + 18x2 = 3x + -3x + -5x2 + 5x2

Combine like terms: 3x + -3x = 0
18x + 18x2 = 0 + -5x2 + 5x2
18x + 18x2 = -5x2 + 5x2

Combine like terms: -5x2 + 5x2 = 0
18x + 18x2 = 0

Factor out the Greatest Common Factor (GCF), '18x'.
18x(1 + x) = 0

Ignore the factor 18.

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

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 = {0, -1}

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