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Simplifying 8x2 + 20xy + -10xy + -25y2 = 0 Reorder the terms: 20xy + -10xy + 8x2 + -25y2 = 0 Combine like terms: 20xy + -10xy = 10xy 10xy + 8x2 + -25y2 = 0 Solving 10xy + 8x2 + -25y2 = 0 Solving for variable 'x'. Factor a trinomial. (4x + -5y)(2x + 5y) = 0Subproblem 1
Set the factor '(4x + -5y)' equal to zero and attempt to solve: Simplifying 4x + -5y = 0 Solving 4x + -5y = 0 Move all terms containing x to the left, all other terms to the right. Add '5y' to each side of the equation. 4x + -5y + 5y = 0 + 5y Combine like terms: -5y + 5y = 0 4x + 0 = 0 + 5y 4x = 0 + 5y Remove the zero: 4x = 5y Divide each side by '4'. x = 1.25y Simplifying x = 1.25ySubproblem 2
Set the factor '(2x + 5y)' equal to zero and attempt to solve: Simplifying 2x + 5y = 0 Solving 2x + 5y = 0 Move all terms containing x to the left, all other terms to the right. Add '-5y' to each side of the equation. 2x + 5y + -5y = 0 + -5y Combine like terms: 5y + -5y = 0 2x + 0 = 0 + -5y 2x = 0 + -5y Remove the zero: 2x = -5y Divide each side by '2'. x = -2.5y Simplifying x = -2.5ySolution
x = {1.25y, -2.5y}
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