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Simplifying (6 + 4x + 2x2 + 9x3) + (9 + -4x + 2x2 + -9x3) = 0 Remove parenthesis around (6 + 4x + 2x2 + 9x3) 6 + 4x + 2x2 + 9x3 + (9 + -4x + 2x2 + -9x3) = 0 Remove parenthesis around (9 + -4x + 2x2 + -9x3) 6 + 4x + 2x2 + 9x3 + 9 + -4x + 2x2 + -9x3 = 0 Reorder the terms: 6 + 9 + 4x + -4x + 2x2 + 2x2 + 9x3 + -9x3 = 0 Combine like terms: 6 + 9 = 15 15 + 4x + -4x + 2x2 + 2x2 + 9x3 + -9x3 = 0 Combine like terms: 4x + -4x = 0 15 + 0 + 2x2 + 2x2 + 9x3 + -9x3 = 0 15 + 2x2 + 2x2 + 9x3 + -9x3 = 0 Combine like terms: 2x2 + 2x2 = 4x2 15 + 4x2 + 9x3 + -9x3 = 0 Combine like terms: 9x3 + -9x3 = 0 15 + 4x2 + 0 = 0 15 + 4x2 = 0 Solving 15 + 4x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + 4x2 = 0 + -15 Combine like terms: 15 + -15 = 0 0 + 4x2 = 0 + -15 4x2 = 0 + -15 Combine like terms: 0 + -15 = -15 4x2 = -15 Divide each side by '4'. x2 = -3.75 Simplifying x2 = -3.75 Reorder the terms: 3.75 + x2 = -3.75 + 3.75 Combine like terms: -3.75 + 3.75 = 0.00 3.75 + x2 = 0.00 The solution to this equation could not be determined.
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