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Simplifying 63X2 + -40X + -7 = 0 Reorder the terms: -7 + -40X + 63X2 = 0 Solving -7 + -40X + 63X2 = 0 Solving for variable 'X'. Factor a trinomial. (-1 + -7X)(7 + -9X) = 0Subproblem 1
Set the factor '(-1 + -7X)' equal to zero and attempt to solve: Simplifying -1 + -7X = 0 Solving -1 + -7X = 0 Move all terms containing X to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -7X = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -7X = 0 + 1 -7X = 0 + 1 Combine like terms: 0 + 1 = 1 -7X = 1 Divide each side by '-7'. X = -0.1428571429 Simplifying X = -0.1428571429Subproblem 2
Set the factor '(7 + -9X)' equal to zero and attempt to solve: Simplifying 7 + -9X = 0 Solving 7 + -9X = 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 + -9X = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -9X = 0 + -7 -9X = 0 + -7 Combine like terms: 0 + -7 = -7 -9X = -7 Divide each side by '-9'. X = 0.7777777778 Simplifying X = 0.7777777778Solution
X = {-0.1428571429, 0.7777777778}
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