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Simplifying (x2 + 6x + -7)(2x + 6) = 0 Reorder the terms: (-7 + 6x + x2)(2x + 6) = 0 Reorder the terms: (-7 + 6x + x2)(6 + 2x) = 0 Multiply (-7 + 6x + x2) * (6 + 2x) (-7(6 + 2x) + 6x * (6 + 2x) + x2(6 + 2x)) = 0 ((6 * -7 + 2x * -7) + 6x * (6 + 2x) + x2(6 + 2x)) = 0 ((-42 + -14x) + 6x * (6 + 2x) + x2(6 + 2x)) = 0 (-42 + -14x + (6 * 6x + 2x * 6x) + x2(6 + 2x)) = 0 (-42 + -14x + (36x + 12x2) + x2(6 + 2x)) = 0 (-42 + -14x + 36x + 12x2 + (6 * x2 + 2x * x2)) = 0 (-42 + -14x + 36x + 12x2 + (6x2 + 2x3)) = 0 Combine like terms: -14x + 36x = 22x (-42 + 22x + 12x2 + 6x2 + 2x3) = 0 Combine like terms: 12x2 + 6x2 = 18x2 (-42 + 22x + 18x2 + 2x3) = 0 Solving -42 + 22x + 18x2 + 2x3 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(-21 + 11x + 9x2 + x3) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-21 + 11x + 9x2 + x3)' equal to zero and attempt to solve: Simplifying -21 + 11x + 9x2 + x3 = 0 Solving -21 + 11x + 9x2 + 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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