81x^2-54x=-9

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Solution for 81x^2-54x=-9 equation:


Simplifying
81x2 + -54x = -9

Reorder the terms:
-54x + 81x2 = -9

Solving
-54x + 81x2 = -9

Solving for variable 'x'.

Reorder the terms:
9 + -54x + 81x2 = -9 + 9

Combine like terms: -9 + 9 = 0
9 + -54x + 81x2 = 0

Factor out the Greatest Common Factor (GCF), '9'.
9(1 + -6x + 9x2) = 0

Factor a trinomial.
9((1 + -3x)(1 + -3x)) = 0

Ignore the factor 9.

Subproblem 1

Set the factor '(1 + -3x)' equal to zero and attempt to solve: Simplifying 1 + -3x = 0 Solving 1 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3x = 0 + -1 -3x = 0 + -1 Combine like terms: 0 + -1 = -1 -3x = -1 Divide each side by '-3'. x = 0.3333333333 Simplifying x = 0.3333333333

Subproblem 2

Set the factor '(1 + -3x)' equal to zero and attempt to solve: Simplifying 1 + -3x = 0 Solving 1 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -3x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3x = 0 + -1 -3x = 0 + -1 Combine like terms: 0 + -1 = -1 -3x = -1 Divide each side by '-3'. x = 0.3333333333 Simplifying x = 0.3333333333

Solution

x = {0.3333333333, 0.3333333333}

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