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Simplifying 0 = x4 + -5x3 + -9x2 + -7x + 2 Reorder the terms: 0 = 2 + -7x + -9x2 + -5x3 + x4 Solving 0 = 2 + -7x + -9x2 + -5x3 + x4 Solving for variable 'x'. Combine like terms: 0 + -2 = -2 -2 + 7x + 9x2 + 5x3 + -1x4 = 2 + -7x + -9x2 + -5x3 + x4 + -2 + 7x + 9x2 + 5x3 + -1x4 Reorder the terms: -2 + 7x + 9x2 + 5x3 + -1x4 = 2 + -2 + -7x + 7x + -9x2 + 9x2 + -5x3 + 5x3 + x4 + -1x4 Combine like terms: 2 + -2 = 0 -2 + 7x + 9x2 + 5x3 + -1x4 = 0 + -7x + 7x + -9x2 + 9x2 + -5x3 + 5x3 + x4 + -1x4 -2 + 7x + 9x2 + 5x3 + -1x4 = -7x + 7x + -9x2 + 9x2 + -5x3 + 5x3 + x4 + -1x4 Combine like terms: -7x + 7x = 0 -2 + 7x + 9x2 + 5x3 + -1x4 = 0 + -9x2 + 9x2 + -5x3 + 5x3 + x4 + -1x4 -2 + 7x + 9x2 + 5x3 + -1x4 = -9x2 + 9x2 + -5x3 + 5x3 + x4 + -1x4 Combine like terms: -9x2 + 9x2 = 0 -2 + 7x + 9x2 + 5x3 + -1x4 = 0 + -5x3 + 5x3 + x4 + -1x4 -2 + 7x + 9x2 + 5x3 + -1x4 = -5x3 + 5x3 + x4 + -1x4 Combine like terms: -5x3 + 5x3 = 0 -2 + 7x + 9x2 + 5x3 + -1x4 = 0 + x4 + -1x4 -2 + 7x + 9x2 + 5x3 + -1x4 = x4 + -1x4 Combine like terms: x4 + -1x4 = 0 -2 + 7x + 9x2 + 5x3 + -1x4 = 0 The solution to this equation could not be determined.
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