9x^2+69x=-90

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Solution for 9x^2+69x=-90 equation:


Simplifying
9x2 + 69x = -90

Reorder the terms:
69x + 9x2 = -90

Solving
69x + 9x2 = -90

Solving for variable 'x'.

Reorder the terms:
90 + 69x + 9x2 = -90 + 90

Combine like terms: -90 + 90 = 0
90 + 69x + 9x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(30 + 23x + 3x2) = 0

Factor a trinomial.
3((6 + x)(5 + 3x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(6 + x)' equal to zero and attempt to solve: Simplifying 6 + x = 0 Solving 6 + x = 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 + x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + x = 0 + -6 x = 0 + -6 Combine like terms: 0 + -6 = -6 x = -6 Simplifying x = -6

Subproblem 2

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

Solution

x = {-6, -1.666666667}

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