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Simplifying (x3 + -2x2 + 8x + -4) + (x2 + 9x + -7) = 0 Reorder the terms: (-4 + 8x + -2x2 + x3) + (x2 + 9x + -7) = 0 Remove parenthesis around (-4 + 8x + -2x2 + x3) -4 + 8x + -2x2 + x3 + (x2 + 9x + -7) = 0 Reorder the terms: -4 + 8x + -2x2 + x3 + (-7 + 9x + x2) = 0 Remove parenthesis around (-7 + 9x + x2) -4 + 8x + -2x2 + x3 + -7 + 9x + x2 = 0 Reorder the terms: -4 + -7 + 8x + 9x + -2x2 + x2 + x3 = 0 Combine like terms: -4 + -7 = -11 -11 + 8x + 9x + -2x2 + x2 + x3 = 0 Combine like terms: 8x + 9x = 17x -11 + 17x + -2x2 + x2 + x3 = 0 Combine like terms: -2x2 + x2 = -1x2 -11 + 17x + -1x2 + x3 = 0 Solving -11 + 17x + -1x2 + x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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