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Simplifying (x + -4)(16x2 + 20x + 80) = 0 Reorder the terms: (-4 + x)(16x2 + 20x + 80) = 0 Reorder the terms: (-4 + x)(80 + 20x + 16x2) = 0 Multiply (-4 + x) * (80 + 20x + 16x2) (-4(80 + 20x + 16x2) + x(80 + 20x + 16x2)) = 0 ((80 * -4 + 20x * -4 + 16x2 * -4) + x(80 + 20x + 16x2)) = 0 ((-320 + -80x + -64x2) + x(80 + 20x + 16x2)) = 0 (-320 + -80x + -64x2 + (80 * x + 20x * x + 16x2 * x)) = 0 (-320 + -80x + -64x2 + (80x + 20x2 + 16x3)) = 0 Reorder the terms: (-320 + -80x + 80x + -64x2 + 20x2 + 16x3) = 0 Combine like terms: -80x + 80x = 0 (-320 + 0 + -64x2 + 20x2 + 16x3) = 0 (-320 + -64x2 + 20x2 + 16x3) = 0 Combine like terms: -64x2 + 20x2 = -44x2 (-320 + -44x2 + 16x3) = 0 Solving -320 + -44x2 + 16x3 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '4'. 4(-80 + -11x2 + 4x3) = 0 Ignore the factor 4.Subproblem 1
Set the factor '(-80 + -11x2 + 4x3)' equal to zero and attempt to solve: Simplifying -80 + -11x2 + 4x3 = 0 Solving -80 + -11x2 + 4x3 = 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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