0=5x^2+15x

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Solution for 0=5x^2+15x equation:


Simplifying
0 = 5x2 + 15x

Reorder the terms:
0 = 15x + 5x2

Solving
0 = 15x + 5x2

Solving for variable 'x'.
Remove the zero:
-15x + -5x2 = 15x + 5x2 + -15x + -5x2

Reorder the terms:
-15x + -5x2 = 15x + -15x + 5x2 + -5x2

Combine like terms: 15x + -15x = 0
-15x + -5x2 = 0 + 5x2 + -5x2
-15x + -5x2 = 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-15x + -5x2 = 0

Factor out the Greatest Common Factor (GCF), '-5x'.
-5x(3 + x) = 0

Ignore the factor -5.

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 '(3 + x)' equal to zero and attempt to solve: Simplifying 3 + x = 0 Solving 3 + x = 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 + x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + x = 0 + -3 x = 0 + -3 Combine like terms: 0 + -3 = -3 x = -3 Simplifying x = -3

Solution

x = {0, -3}

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