3x^2+12x=3(x+4x)

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Solution for 3x^2+12x=3(x+4x) equation:


Simplifying
3x2 + 12x = 3(x + 4x)

Reorder the terms:
12x + 3x2 = 3(x + 4x)

Combine like terms: x + 4x = 5x
12x + 3x2 = 3(5x)

Remove parenthesis around (5x)
12x + 3x2 = 3 * 5x

Multiply 3 * 5
12x + 3x2 = 15x

Solving
12x + 3x2 = 15x

Solving for variable 'x'.

Reorder the terms:
12x + -15x + 3x2 = 15x + -15x

Combine like terms: 12x + -15x = -3x
-3x + 3x2 = 15x + -15x

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

Factor out the Greatest Common Factor (GCF), '3x'.
3x(-1 + 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 '(-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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