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Simplifying 30x2 + 21xy + -36y2 = 0 Reorder the terms: 21xy + 30x2 + -36y2 = 0 Solving 21xy + 30x2 + -36y2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3'. 3(7xy + 10x2 + -12y2) = 0 Factor a trinomial. 3((5x + -4y)(2x + 3y)) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(5x + -4y)' equal to zero and attempt to solve: Simplifying 5x + -4y = 0 Solving 5x + -4y = 0 Move all terms containing x to the left, all other terms to the right. Add '4y' to each side of the equation. 5x + -4y + 4y = 0 + 4y Combine like terms: -4y + 4y = 0 5x + 0 = 0 + 4y 5x = 0 + 4y Remove the zero: 5x = 4y Divide each side by '5'. x = 0.8y Simplifying x = 0.8ySubproblem 2
Set the factor '(2x + 3y)' equal to zero and attempt to solve: Simplifying 2x + 3y = 0 Solving 2x + 3y = 0 Move all terms containing x to the left, all other terms to the right. Add '-3y' to each side of the equation. 2x + 3y + -3y = 0 + -3y Combine like terms: 3y + -3y = 0 2x + 0 = 0 + -3y 2x = 0 + -3y Remove the zero: 2x = -3y Divide each side by '2'. x = -1.5y Simplifying x = -1.5ySolution
x = {0.8y, -1.5y}
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