9x^2-30=3x

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Solution for 9x^2-30=3x equation:


Simplifying
9x2 + -30 = 3x

Reorder the terms:
-30 + 9x2 = 3x

Solving
-30 + 9x2 = 3x

Solving for variable 'x'.

Reorder the terms:
-30 + -3x + 9x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
-30 + -3x + 9x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(-10 + -1x + 3x2) = 0

Factor a trinomial.
3((-5 + -3x)(2 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-5 + -3x)' equal to zero and attempt to solve: Simplifying -5 + -3x = 0 Solving -5 + -3x = 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 + -3x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -3x = 0 + 5 -3x = 0 + 5 Combine like terms: 0 + 5 = 5 -3x = 5 Divide each side by '-3'. x = -1.666666667 Simplifying x = -1.666666667

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {-1.666666667, 2}

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