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Simplifying (2x2 + 5x + -1) + (x2 + -5x + 7) = 0 Reorder the terms: (-1 + 5x + 2x2) + (x2 + -5x + 7) = 0 Remove parenthesis around (-1 + 5x + 2x2) -1 + 5x + 2x2 + (x2 + -5x + 7) = 0 Reorder the terms: -1 + 5x + 2x2 + (7 + -5x + x2) = 0 Remove parenthesis around (7 + -5x + x2) -1 + 5x + 2x2 + 7 + -5x + x2 = 0 Reorder the terms: -1 + 7 + 5x + -5x + 2x2 + x2 = 0 Combine like terms: -1 + 7 = 6 6 + 5x + -5x + 2x2 + x2 = 0 Combine like terms: 5x + -5x = 0 6 + 0 + 2x2 + x2 = 0 6 + 2x2 + x2 = 0 Combine like terms: 2x2 + x2 = 3x2 6 + 3x2 = 0 Solving 6 + 3x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + 3x2 = 0 + -6 Combine like terms: 6 + -6 = 0 0 + 3x2 = 0 + -6 3x2 = 0 + -6 Combine like terms: 0 + -6 = -6 3x2 = -6 Divide each side by '3'. x2 = -2 Simplifying x2 = -2 Reorder the terms: 2 + x2 = -2 + 2 Combine like terms: -2 + 2 = 0 2 + x2 = 0 The solution to this equation could not be determined.
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