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Simplifying (4x + -9)(4x + -9) = 0 Reorder the terms: (-9 + 4x)(4x + -9) = 0 Reorder the terms: (-9 + 4x)(-9 + 4x) = 0 Multiply (-9 + 4x) * (-9 + 4x) (-9(-9 + 4x) + 4x * (-9 + 4x)) = 0 ((-9 * -9 + 4x * -9) + 4x * (-9 + 4x)) = 0 ((81 + -36x) + 4x * (-9 + 4x)) = 0 (81 + -36x + (-9 * 4x + 4x * 4x)) = 0 (81 + -36x + (-36x + 16x2)) = 0 Combine like terms: -36x + -36x = -72x (81 + -72x + 16x2) = 0 Solving 81 + -72x + 16x2 = 0 Solving for variable 'x'. Factor a trinomial. (9 + -4x)(9 + -4x) = 0Subproblem 1
Set the factor '(9 + -4x)' equal to zero and attempt to solve: Simplifying 9 + -4x = 0 Solving 9 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -4x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -4x = 0 + -9 -4x = 0 + -9 Combine like terms: 0 + -9 = -9 -4x = -9 Divide each side by '-4'. x = 2.25 Simplifying x = 2.25Subproblem 2
Set the factor '(9 + -4x)' equal to zero and attempt to solve: Simplifying 9 + -4x = 0 Solving 9 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -4x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -4x = 0 + -9 -4x = 0 + -9 Combine like terms: 0 + -9 = -9 -4x = -9 Divide each side by '-4'. x = 2.25 Simplifying x = 2.25Solution
x = {2.25, 2.25}
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