90x^2-540x=-810

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Solution for 90x^2-540x=-810 equation:


Simplifying
90x2 + -540x = -810

Reorder the terms:
-540x + 90x2 = -810

Solving
-540x + 90x2 = -810

Solving for variable 'x'.

Reorder the terms:
810 + -540x + 90x2 = -810 + 810

Combine like terms: -810 + 810 = 0
810 + -540x + 90x2 = 0

Factor out the Greatest Common Factor (GCF), '90'.
90(9 + -6x + x2) = 0

Factor a trinomial.
90((3 + -1x)(3 + -1x)) = 0

Ignore the factor 90.

Subproblem 1

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

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 = {3, 3}

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