3x(3x-1)=72

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Solution for 3x(3x-1)=72 equation:


Simplifying
3x(3x + -1) = 72

Reorder the terms:
3x(-1 + 3x) = 72
(-1 * 3x + 3x * 3x) = 72
(-3x + 9x2) = 72

Solving
-3x + 9x2 = 72

Solving for variable 'x'.

Reorder the terms:
-72 + -3x + 9x2 = 72 + -72

Combine like terms: 72 + -72 = 0
-72 + -3x + 9x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-24 + -1x + 3x2) = 0

Factor a trinomial.
3((-8 + -3x)(3 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-8 + -3x)' equal to zero and attempt to solve: Simplifying -8 + -3x = 0 Solving -8 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -3x = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -3x = 0 + 8 -3x = 0 + 8 Combine like terms: 0 + 8 = 8 -3x = 8 Divide each side by '-3'. x = -2.666666667 Simplifying x = -2.666666667

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 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 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-2.666666667, 3}

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