180=3x(x+4)

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Solution for 180=3x(x+4) equation:


Simplifying
180 = 3x(x + 4)

Reorder the terms:
180 = 3x(4 + x)
180 = (4 * 3x + x * 3x)
180 = (12x + 3x2)

Solving
180 = 12x + 3x2

Solving for variable 'x'.

Reorder the terms:
180 + -12x + -3x2 = 12x + -12x + 3x2 + -3x2

Combine like terms: 12x + -12x = 0
180 + -12x + -3x2 = 0 + 3x2 + -3x2
180 + -12x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
180 + -12x + -3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(60 + -4x + -1x2) = 0

Factor a trinomial.
3((6 + -1x)(10 + x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Subproblem 2

Set the factor '(10 + x)' equal to zero and attempt to solve: Simplifying 10 + x = 0 Solving 10 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + x = 0 + -10 x = 0 + -10 Combine like terms: 0 + -10 = -10 x = -10 Simplifying x = -10

Solution

x = {6, -10}

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