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Simplifying (x + 2)(x + 2) = 9x Reorder the terms: (2 + x)(x + 2) = 9x Reorder the terms: (2 + x)(2 + x) = 9x Multiply (2 + x) * (2 + x) (2(2 + x) + x(2 + x)) = 9x ((2 * 2 + x * 2) + x(2 + x)) = 9x ((4 + 2x) + x(2 + x)) = 9x (4 + 2x + (2 * x + x * x)) = 9x (4 + 2x + (2x + x2)) = 9x Combine like terms: 2x + 2x = 4x (4 + 4x + x2) = 9x Solving 4 + 4x + x2 = 9x Solving for variable 'x'. Reorder the terms: 4 + 4x + -9x + x2 = 9x + -9x Combine like terms: 4x + -9x = -5x 4 + -5x + x2 = 9x + -9x Combine like terms: 9x + -9x = 0 4 + -5x + x2 = 0 Factor a trinomial. (1 + -1x)(4 + -1x) = 0Subproblem 1
Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 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 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1Subproblem 2
Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4Solution
x = {1, 4}
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