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Simplifying 36 = (x + 2)(x + 7) Reorder the terms: 36 = (2 + x)(x + 7) Reorder the terms: 36 = (2 + x)(7 + x) Multiply (2 + x) * (7 + x) 36 = (2(7 + x) + x(7 + x)) 36 = ((7 * 2 + x * 2) + x(7 + x)) 36 = ((14 + 2x) + x(7 + x)) 36 = (14 + 2x + (7 * x + x * x)) 36 = (14 + 2x + (7x + x2)) Combine like terms: 2x + 7x = 9x 36 = (14 + 9x + x2) Solving 36 = 14 + 9x + x2 Solving for variable 'x'. Combine like terms: 36 + -14 = 22 22 + -9x + -1x2 = 14 + 9x + x2 + -14 + -9x + -1x2 Reorder the terms: 22 + -9x + -1x2 = 14 + -14 + 9x + -9x + x2 + -1x2 Combine like terms: 14 + -14 = 0 22 + -9x + -1x2 = 0 + 9x + -9x + x2 + -1x2 22 + -9x + -1x2 = 9x + -9x + x2 + -1x2 Combine like terms: 9x + -9x = 0 22 + -9x + -1x2 = 0 + x2 + -1x2 22 + -9x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 22 + -9x + -1x2 = 0 Factor a trinomial. (2 + -1x)(11 + x) = 0Subproblem 1
Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2Subproblem 2
Set the factor '(11 + x)' equal to zero and attempt to solve: Simplifying 11 + x = 0 Solving 11 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = 0 + -11 Combine like terms: 11 + -11 = 0 0 + x = 0 + -11 x = 0 + -11 Combine like terms: 0 + -11 = -11 x = -11 Simplifying x = -11Solution
x = {2, -11}
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