x(3x+3)=60

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Solution for x(3x+3)=60 equation:


Simplifying
x(3x + 3) = 60

Reorder the terms:
x(3 + 3x) = 60
(3 * x + 3x * x) = 60
(3x + 3x2) = 60

Solving
3x + 3x2 = 60

Solving for variable 'x'.

Reorder the terms:
-60 + 3x + 3x2 = 60 + -60

Combine like terms: 60 + -60 = 0
-60 + 3x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-20 + x + x2) = 0

Factor a trinomial.
3((-5 + -1x)(4 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 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 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {-5, 4}

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