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Simplifying (9x + 5)(9x + -5) = 81x + -25 Reorder the terms: (5 + 9x)(9x + -5) = 81x + -25 Reorder the terms: (5 + 9x)(-5 + 9x) = 81x + -25 Multiply (5 + 9x) * (-5 + 9x) (5(-5 + 9x) + 9x * (-5 + 9x)) = 81x + -25 ((-5 * 5 + 9x * 5) + 9x * (-5 + 9x)) = 81x + -25 ((-25 + 45x) + 9x * (-5 + 9x)) = 81x + -25 (-25 + 45x + (-5 * 9x + 9x * 9x)) = 81x + -25 (-25 + 45x + (-45x + 81x2)) = 81x + -25 Combine like terms: 45x + -45x = 0 (-25 + 0 + 81x2) = 81x + -25 (-25 + 81x2) = 81x + -25 Reorder the terms: -25 + 81x2 = -25 + 81x Add '25' to each side of the equation. -25 + 25 + 81x2 = -25 + 25 + 81x Combine like terms: -25 + 25 = 0 0 + 81x2 = -25 + 25 + 81x 81x2 = -25 + 25 + 81x Combine like terms: -25 + 25 = 0 81x2 = 0 + 81x 81x2 = 81x Solving 81x2 = 81x Solving for variable 'x'. Reorder the terms: -81x + 81x2 = 81x + -81x Combine like terms: 81x + -81x = 0 -81x + 81x2 = 0 Factor out the Greatest Common Factor (GCF), '81x'. 81x(-1 + x) = 0 Ignore the factor 81.Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(-1 + x)' equal to zero and attempt to solve: Simplifying -1 + x = 0 Solving -1 + x = 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 + x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + x = 0 + 1 x = 0 + 1 Combine like terms: 0 + 1 = 1 x = 1 Simplifying x = 1Solution
x = {0, 1}
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