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Simplifying (3x2 + 4x + 5) + (3x2 + -4x + 7) = 0 Reorder the terms: (5 + 4x + 3x2) + (3x2 + -4x + 7) = 0 Remove parenthesis around (5 + 4x + 3x2) 5 + 4x + 3x2 + (3x2 + -4x + 7) = 0 Reorder the terms: 5 + 4x + 3x2 + (7 + -4x + 3x2) = 0 Remove parenthesis around (7 + -4x + 3x2) 5 + 4x + 3x2 + 7 + -4x + 3x2 = 0 Reorder the terms: 5 + 7 + 4x + -4x + 3x2 + 3x2 = 0 Combine like terms: 5 + 7 = 12 12 + 4x + -4x + 3x2 + 3x2 = 0 Combine like terms: 4x + -4x = 0 12 + 0 + 3x2 + 3x2 = 0 12 + 3x2 + 3x2 = 0 Combine like terms: 3x2 + 3x2 = 6x2 12 + 6x2 = 0 Solving 12 + 6x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + 6x2 = 0 + -12 Combine like terms: 12 + -12 = 0 0 + 6x2 = 0 + -12 6x2 = 0 + -12 Combine like terms: 0 + -12 = -12 6x2 = -12 Divide each side by '6'. 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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