3x(x+5)-3x(1x-x)=0

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Solution for 3x(x+5)-3x(1x-x)=0 equation:


Simplifying
3x(x + 5) + -3x(1x + -1x) = 0

Reorder the terms:
3x(5 + x) + -3x(1x + -1x) = 0
(5 * 3x + x * 3x) + -3x(1x + -1x) = 0
(15x + 3x2) + -3x(1x + -1x) = 0

Combine like terms: 1x + -1x = 0
15x + 3x2 + -3x(0) = 0

Reorder the terms for easier multiplication:
15x + 3x2 + -3 * 0x = 0

Multiply -3 * 0
15x + 3x2 + 0x = 0

Anything times zero is zero.
15x + 3x2 + 0x = 0

Reorder the terms:
0 + 15x + 3x2 = 0
Remove the zero:
15x + 3x2 = 0

Solving
15x + 3x2 = 0

Solving for variable 'x'.

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

Ignore the factor 3.

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 '(5 + x)' equal to zero and attempt to solve: Simplifying 5 + x = 0 Solving 5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + x = 0 + -5 x = 0 + -5 Combine like terms: 0 + -5 = -5 x = -5 Simplifying x = -5

Solution

x = {0, -5}

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