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Simplifying 7x2 + 2x + -15 = 41 + -39x Reorder the terms: -15 + 2x + 7x2 = 41 + -39x Solving -15 + 2x + 7x2 = 41 + -39x Solving for variable 'x'. Reorder the terms: -15 + -41 + 2x + 39x + 7x2 = 41 + -39x + -41 + 39x Combine like terms: -15 + -41 = -56 -56 + 2x + 39x + 7x2 = 41 + -39x + -41 + 39x Combine like terms: 2x + 39x = 41x -56 + 41x + 7x2 = 41 + -39x + -41 + 39x Reorder the terms: -56 + 41x + 7x2 = 41 + -41 + -39x + 39x Combine like terms: 41 + -41 = 0 -56 + 41x + 7x2 = 0 + -39x + 39x -56 + 41x + 7x2 = -39x + 39x Combine like terms: -39x + 39x = 0 -56 + 41x + 7x2 = 0 Factor a trinomial. (-7 + -1x)(8 + -7x) = 0Subproblem 1
Set the factor '(-7 + -1x)' equal to zero and attempt to solve: Simplifying -7 + -1x = 0 Solving -7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1x = 0 + 7 -1x = 0 + 7 Combine like terms: 0 + 7 = 7 -1x = 7 Divide each side by '-1'. x = -7 Simplifying x = -7Subproblem 2
Set the factor '(8 + -7x)' equal to zero and attempt to solve: Simplifying 8 + -7x = 0 Solving 8 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -7x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -7x = 0 + -8 -7x = 0 + -8 Combine like terms: 0 + -8 = -8 -7x = -8 Divide each side by '-7'. x = 1.142857143 Simplifying x = 1.142857143Solution
x = {-7, 1.142857143}
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