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Simplifying x(x + 7)(2x + -2) = 1680 Reorder the terms: x(7 + x)(2x + -2) = 1680 Reorder the terms: x(7 + x)(-2 + 2x) = 1680 Multiply (7 + x) * (-2 + 2x) x(7(-2 + 2x) + x(-2 + 2x)) = 1680 x((-2 * 7 + 2x * 7) + x(-2 + 2x)) = 1680 x((-14 + 14x) + x(-2 + 2x)) = 1680 x(-14 + 14x + (-2 * x + 2x * x)) = 1680 x(-14 + 14x + (-2x + 2x2)) = 1680 Combine like terms: 14x + -2x = 12x x(-14 + 12x + 2x2) = 1680 (-14 * x + 12x * x + 2x2 * x) = 1680 (-14x + 12x2 + 2x3) = 1680 Solving -14x + 12x2 + 2x3 = 1680 Solving for variable 'x'. Reorder the terms: -1680 + -14x + 12x2 + 2x3 = 1680 + -1680 Combine like terms: 1680 + -1680 = 0 -1680 + -14x + 12x2 + 2x3 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-840 + -7x + 6x2 + x3) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-840 + -7x + 6x2 + x3)' equal to zero and attempt to solve: Simplifying -840 + -7x + 6x2 + x3 = 0 Solving -840 + -7x + 6x2 + x3 = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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