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Simplifying 25x2y + 90xy + -40y = 0 Reorder the terms: 90xy + 25x2y + -40y = 0 Solving 90xy + 25x2y + -40y = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '5y'. 5y(18x + 5x2 + -8) = 0 Factor a trinomial. 5y((5x + -2)(x + 4)) = 0 Ignore the factor 5.Subproblem 1
Set the factor 'y' equal to zero and attempt to solve: Simplifying y = 0 Solving y = 0 Move all terms containing x to the left, all other terms to the right. Add '-1y' to each side of the equation. y + -1y = 0 + -1y Remove the zero: 0 = -1y Simplifying 0 = -1y The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.Subproblem 2
Set the factor '(5x + -2)' equal to zero and attempt to solve: Simplifying 5x + -2 = 0 Reorder the terms: -2 + 5x = 0 Solving -2 + 5x = 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 + 5x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 5x = 0 + 2 5x = 0 + 2 Combine like terms: 0 + 2 = 2 5x = 2 Divide each side by '5'. x = 0.4 Simplifying x = 0.4Subproblem 3
Set the factor '(x + 4)' equal to zero and attempt to solve: Simplifying x + 4 = 0 Reorder the terms: 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4Solution
x = {0.4, -4}
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