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Simplifying (7x2 + -4x) + -1(5x2 + 2x) = 0 Reorder the terms: (-4x + 7x2) + -1(5x2 + 2x) = 0 Remove parenthesis around (-4x + 7x2) -4x + 7x2 + -1(5x2 + 2x) = 0 Reorder the terms: -4x + 7x2 + -1(2x + 5x2) = 0 -4x + 7x2 + (2x * -1 + 5x2 * -1) = 0 -4x + 7x2 + (-2x + -5x2) = 0 Reorder the terms: -4x + -2x + 7x2 + -5x2 = 0 Combine like terms: -4x + -2x = -6x -6x + 7x2 + -5x2 = 0 Combine like terms: 7x2 + -5x2 = 2x2 -6x + 2x2 = 0 Solving -6x + 2x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2x'. 2x(-3 + x) = 0 Ignore the factor 2.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 '(-3 + x)' equal to zero and attempt to solve: Simplifying -3 + x = 0 Solving -3 + x = 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 + x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + x = 0 + 3 x = 0 + 3 Combine like terms: 0 + 3 = 3 x = 3 Simplifying x = 3Solution
x = {0, 3}
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