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Simplifying 4x2 + 8xy + -1xy + -2y2 = 0 Reorder the terms: 8xy + -1xy + 4x2 + -2y2 = 0 Combine like terms: 8xy + -1xy = 7xy 7xy + 4x2 + -2y2 = 0 Solving 7xy + 4x2 + -2y2 = 0 Solving for variable 'x'. Factor a trinomial. (4x + -1y)(x + 2y) = 0Subproblem 1
Set the factor '(4x + -1y)' equal to zero and attempt to solve: Simplifying 4x + -1y = 0 Solving 4x + -1y = 0 Move all terms containing x to the left, all other terms to the right. Add 'y' to each side of the equation. 4x + -1y + y = 0 + y Combine like terms: -1y + y = 0 4x + 0 = 0 + y 4x = 0 + y Remove the zero: 4x = y Divide each side by '4'. x = 0.25y Simplifying x = 0.25ySubproblem 2
Set the factor '(x + 2y)' equal to zero and attempt to solve: Simplifying x + 2y = 0 Solving x + 2y = 0 Move all terms containing x to the left, all other terms to the right. Add '-2y' to each side of the equation. x + 2y + -2y = 0 + -2y Combine like terms: 2y + -2y = 0 x + 0 = 0 + -2y x = 0 + -2y Remove the zero: x = -2y Simplifying x = -2ySolution
x = {0.25y, -2y}
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