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Simplifying 20x2 + 18x = -7x2 Reorder the terms: 18x + 20x2 = -7x2 Solving 18x + 20x2 = -7x2 Solving for variable 'x'. Combine like terms: 20x2 + 7x2 = 27x2 18x + 27x2 = -7x2 + 7x2 Combine like terms: -7x2 + 7x2 = 0 18x + 27x2 = 0 Factor out the Greatest Common Factor (GCF), '9x'. 9x(2 + 3x) = 0 Ignore the factor 9.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 '(2 + 3x)' equal to zero and attempt to solve: Simplifying 2 + 3x = 0 Solving 2 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 3x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 3x = 0 + -2 3x = 0 + -2 Combine like terms: 0 + -2 = -2 3x = -2 Divide each side by '3'. x = -0.6666666667 Simplifying x = -0.6666666667Solution
x = {0, -0.6666666667}
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