9x^2+18x-47=8

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Solution for 9x^2+18x-47=8 equation:


Simplifying
9x2 + 18x + -47 = 8

Reorder the terms:
-47 + 18x + 9x2 = 8

Solving
-47 + 18x + 9x2 = 8

Solving for variable 'x'.

Reorder the terms:
-47 + -8 + 18x + 9x2 = 8 + -8

Combine like terms: -47 + -8 = -55
-55 + 18x + 9x2 = 8 + -8

Combine like terms: 8 + -8 = 0
-55 + 18x + 9x2 = 0

Factor a trinomial.
(-11 + -3x)(5 + -3x) = 0

Subproblem 1

Set the factor '(-11 + -3x)' equal to zero and attempt to solve: Simplifying -11 + -3x = 0 Solving -11 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -3x = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -3x = 0 + 11 -3x = 0 + 11 Combine like terms: 0 + 11 = 11 -3x = 11 Divide each side by '-3'. x = -3.666666667 Simplifying x = -3.666666667

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 = {-3.666666667, 1.666666667}

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