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Simplifying 8x2 = 60 + -28x Solving 8x2 = 60 + -28x Solving for variable 'x'. Reorder the terms: -60 + 28x + 8x2 = 60 + -28x + -60 + 28x Reorder the terms: -60 + 28x + 8x2 = 60 + -60 + -28x + 28x Combine like terms: 60 + -60 = 0 -60 + 28x + 8x2 = 0 + -28x + 28x -60 + 28x + 8x2 = -28x + 28x Combine like terms: -28x + 28x = 0 -60 + 28x + 8x2 = 0 Factor out the Greatest Common Factor (GCF), '4'. 4(-15 + 7x + 2x2) = 0 Factor a trinomial. 4((-5 + -1x)(3 + -2x)) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-5 + -1x)' equal to zero and attempt to solve: Simplifying -5 + -1x = 0 Solving -5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1x = 0 + 5 -1x = 0 + 5 Combine like terms: 0 + 5 = 5 -1x = 5 Divide each side by '-1'. x = -5 Simplifying x = -5Subproblem 2
Set the factor '(3 + -2x)' equal to zero and attempt to solve: Simplifying 3 + -2x = 0 Solving 3 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2x = 0 + -3 -2x = 0 + -3 Combine like terms: 0 + -3 = -3 -2x = -3 Divide each side by '-2'. x = 1.5 Simplifying x = 1.5Solution
x = {-5, 1.5}
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