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Simplifying 5x2 + -9x + -25 = -7 Reorder the terms: -25 + -9x + 5x2 = -7 Solving -25 + -9x + 5x2 = -7 Solving for variable 'x'. Reorder the terms: -25 + 7 + -9x + 5x2 = -7 + 7 Combine like terms: -25 + 7 = -18 -18 + -9x + 5x2 = -7 + 7 Combine like terms: -7 + 7 = 0 -18 + -9x + 5x2 = 0 Factor a trinomial. (-6 + -5x)(3 + -1x) = 0Subproblem 1
Set the factor '(-6 + -5x)' equal to zero and attempt to solve: Simplifying -6 + -5x = 0 Solving -6 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -5x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -5x = 0 + 6 -5x = 0 + 6 Combine like terms: 0 + 6 = 6 -5x = 6 Divide each side by '-5'. x = -1.2 Simplifying x = -1.2Subproblem 2
Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3Solution
x = {-1.2, 3}
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