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Simplifying (x + 1)(x + 1) = 2x2 + -1x + -9 Reorder the terms: (1 + x)(x + 1) = 2x2 + -1x + -9 Reorder the terms: (1 + x)(1 + x) = 2x2 + -1x + -9 Multiply (1 + x) * (1 + x) (1(1 + x) + x(1 + x)) = 2x2 + -1x + -9 ((1 * 1 + x * 1) + x(1 + x)) = 2x2 + -1x + -9 ((1 + 1x) + x(1 + x)) = 2x2 + -1x + -9 (1 + 1x + (1 * x + x * x)) = 2x2 + -1x + -9 (1 + 1x + (1x + x2)) = 2x2 + -1x + -9 Combine like terms: 1x + 1x = 2x (1 + 2x + x2) = 2x2 + -1x + -9 Reorder the terms: 1 + 2x + x2 = -9 + -1x + 2x2 Solving 1 + 2x + x2 = -9 + -1x + 2x2 Solving for variable 'x'. Reorder the terms: 1 + 9 + 2x + x + x2 + -2x2 = -9 + -1x + 2x2 + 9 + x + -2x2 Combine like terms: 1 + 9 = 10 10 + 2x + x + x2 + -2x2 = -9 + -1x + 2x2 + 9 + x + -2x2 Combine like terms: 2x + x = 3x 10 + 3x + x2 + -2x2 = -9 + -1x + 2x2 + 9 + x + -2x2 Combine like terms: x2 + -2x2 = -1x2 10 + 3x + -1x2 = -9 + -1x + 2x2 + 9 + x + -2x2 Reorder the terms: 10 + 3x + -1x2 = -9 + 9 + -1x + x + 2x2 + -2x2 Combine like terms: -9 + 9 = 0 10 + 3x + -1x2 = 0 + -1x + x + 2x2 + -2x2 10 + 3x + -1x2 = -1x + x + 2x2 + -2x2 Combine like terms: -1x + x = 0 10 + 3x + -1x2 = 0 + 2x2 + -2x2 10 + 3x + -1x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 10 + 3x + -1x2 = 0 Factor a trinomial. (5 + -1x)(2 + x) = 0Subproblem 1
Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5Subproblem 2
Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2Solution
x = {5, -2}
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