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Simplifying (2x + 7) * x = 22 Reorder the terms: (7 + 2x) * x = 22 Reorder the terms for easier multiplication: x(7 + 2x) = 22 (7 * x + 2x * x) = 22 (7x + 2x2) = 22 Solving 7x + 2x2 = 22 Solving for variable 'x'. Reorder the terms: -22 + 7x + 2x2 = 22 + -22 Combine like terms: 22 + -22 = 0 -22 + 7x + 2x2 = 0 Factor a trinomial. (-11 + -2x)(2 + -1x) = 0Subproblem 1
Set the factor '(-11 + -2x)' equal to zero and attempt to solve: Simplifying -11 + -2x = 0 Solving -11 + -2x = 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 + -2x = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -2x = 0 + 11 -2x = 0 + 11 Combine like terms: 0 + 11 = 11 -2x = 11 Divide each side by '-2'. x = -5.5 Simplifying x = -5.5Subproblem 2
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 = 2Solution
x = {-5.5, 2}
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