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Simplifying 7x2 + 11x + -13 = -7 Reorder the terms: -13 + 11x + 7x2 = -7 Solving -13 + 11x + 7x2 = -7 Solving for variable 'x'. Reorder the terms: -13 + 7 + 11x + 7x2 = -7 + 7 Combine like terms: -13 + 7 = -6 -6 + 11x + 7x2 = -7 + 7 Combine like terms: -7 + 7 = 0 -6 + 11x + 7x2 = 0 Factor a trinomial. (-2 + -1x)(3 + -7x) = 0Subproblem 1
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 = -2Subproblem 2
Set the factor '(3 + -7x)' equal to zero and attempt to solve: Simplifying 3 + -7x = 0 Solving 3 + -7x = 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 + -7x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -7x = 0 + -3 -7x = 0 + -3 Combine like terms: 0 + -3 = -3 -7x = -3 Divide each side by '-7'. x = 0.4285714286 Simplifying x = 0.4285714286Solution
x = {-2, 0.4285714286}
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