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Simplifying F(x) = -2x2 + 20x Multiply F * x xF = -2x2 + 20x Reorder the terms: xF = 20x + -2x2 Solving xF = 20x + -2x2 Solving for variable 'x'. Reorder the terms: -20x + xF + 2x2 = 20x + -2x2 + -20x + 2x2 Reorder the terms: -20x + xF + 2x2 = 20x + -20x + -2x2 + 2x2 Combine like terms: 20x + -20x = 0 -20x + xF + 2x2 = 0 + -2x2 + 2x2 -20x + xF + 2x2 = -2x2 + 2x2 Combine like terms: -2x2 + 2x2 = 0 -20x + xF + 2x2 = 0 Factor out the Greatest Common Factor (GCF), 'x'. x(-20 + F + 2x) = 0Subproblem 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 '(-20 + F + 2x)' equal to zero and attempt to solve: Simplifying -20 + F + 2x = 0 Solving -20 + F + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '20' to each side of the equation. -20 + F + 20 + 2x = 0 + 20 Reorder the terms: -20 + 20 + F + 2x = 0 + 20 Combine like terms: -20 + 20 = 0 0 + F + 2x = 0 + 20 F + 2x = 0 + 20 Combine like terms: 0 + 20 = 20 F + 2x = 20 Add '-1F' to each side of the equation. F + -1F + 2x = 20 + -1F Combine like terms: F + -1F = 0 0 + 2x = 20 + -1F 2x = 20 + -1F Divide each side by '2'. x = 10 + -0.5F Simplifying x = 10 + -0.5FSolution
x = {0, 10 + -0.5F}
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