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Simplifying 180 = x(x + 8) Reorder the terms: 180 = x(8 + x) 180 = (8 * x + x * x) 180 = (8x + x2) Solving 180 = 8x + x2 Solving for variable 'x'. Reorder the terms: 180 + -8x + -1x2 = 8x + -8x + x2 + -1x2 Combine like terms: 8x + -8x = 0 180 + -8x + -1x2 = 0 + x2 + -1x2 180 + -8x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 180 + -8x + -1x2 = 0 Factor a trinomial. (10 + -1x)(18 + x) = 0Subproblem 1
Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10Subproblem 2
Set the factor '(18 + x)' equal to zero and attempt to solve: Simplifying 18 + x = 0 Solving 18 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + x = 0 + -18 Combine like terms: 18 + -18 = 0 0 + x = 0 + -18 x = 0 + -18 Combine like terms: 0 + -18 = -18 x = -18 Simplifying x = -18Solution
x = {10, -18}
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