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Simplifying 60 = (7 + x) * x Reorder the terms for easier multiplication: 60 = x(7 + x) 60 = (7 * x + x * x) 60 = (7x + x2) Solving 60 = 7x + x2 Solving for variable 'x'. Reorder the terms: 60 + -7x + -1x2 = 7x + -7x + x2 + -1x2 Combine like terms: 7x + -7x = 0 60 + -7x + -1x2 = 0 + x2 + -1x2 60 + -7x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 60 + -7x + -1x2 = 0 Factor a trinomial. (5 + -1x)(12 + 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 '(12 + x)' equal to zero and attempt to solve: Simplifying 12 + x = 0 Solving 12 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + x = 0 + -12 Combine like terms: 12 + -12 = 0 0 + x = 0 + -12 x = 0 + -12 Combine like terms: 0 + -12 = -12 x = -12 Simplifying x = -12Solution
x = {5, -12}
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