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Simplifying 8x2 + 5x = 3 + 7x Reorder the terms: 5x + 8x2 = 3 + 7x Solving 5x + 8x2 = 3 + 7x Solving for variable 'x'. Reorder the terms: -3 + 5x + -7x + 8x2 = 3 + 7x + -3 + -7x Combine like terms: 5x + -7x = -2x -3 + -2x + 8x2 = 3 + 7x + -3 + -7x Reorder the terms: -3 + -2x + 8x2 = 3 + -3 + 7x + -7x Combine like terms: 3 + -3 = 0 -3 + -2x + 8x2 = 0 + 7x + -7x -3 + -2x + 8x2 = 7x + -7x Combine like terms: 7x + -7x = 0 -3 + -2x + 8x2 = 0 Factor a trinomial. (-1 + -2x)(3 + -4x) = 0Subproblem 1
Set the factor '(-1 + -2x)' equal to zero and attempt to solve: Simplifying -1 + -2x = 0 Solving -1 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -2x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2x = 0 + 1 -2x = 0 + 1 Combine like terms: 0 + 1 = 1 -2x = 1 Divide each side by '-2'. x = -0.5 Simplifying x = -0.5Subproblem 2
Set the factor '(3 + -4x)' equal to zero and attempt to solve: Simplifying 3 + -4x = 0 Solving 3 + -4x = 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 + -4x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4x = 0 + -3 -4x = 0 + -3 Combine like terms: 0 + -3 = -3 -4x = -3 Divide each side by '-4'. x = 0.75 Simplifying x = 0.75Solution
x = {-0.5, 0.75}
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