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Simplifying -7x + 15x2 = 20x Solving -7x + 15x2 = 20x Solving for variable 'x'. Reorder the terms: -7x + -20x + 15x2 = 20x + -20x Combine like terms: -7x + -20x = -27x -27x + 15x2 = 20x + -20x Combine like terms: 20x + -20x = 0 -27x + 15x2 = 0 Factor out the Greatest Common Factor (GCF), '3x'. 3x(-9 + 5x) = 0 Ignore the factor 3.Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(-9 + 5x)' equal to zero and attempt to solve: Simplifying -9 + 5x = 0 Solving -9 + 5x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + 5x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 5x = 0 + 9 5x = 0 + 9 Combine like terms: 0 + 9 = 9 5x = 9 Divide each side by '5'. x = 1.8 Simplifying x = 1.8Solution
x = {0, 1.8}
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