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Simplifying (2 + 6x + 8x2 + 7x3) + (3 + -6x + 8x2 + -7x3) = 0 Remove parenthesis around (2 + 6x + 8x2 + 7x3) 2 + 6x + 8x2 + 7x3 + (3 + -6x + 8x2 + -7x3) = 0 Remove parenthesis around (3 + -6x + 8x2 + -7x3) 2 + 6x + 8x2 + 7x3 + 3 + -6x + 8x2 + -7x3 = 0 Reorder the terms: 2 + 3 + 6x + -6x + 8x2 + 8x2 + 7x3 + -7x3 = 0 Combine like terms: 2 + 3 = 5 5 + 6x + -6x + 8x2 + 8x2 + 7x3 + -7x3 = 0 Combine like terms: 6x + -6x = 0 5 + 0 + 8x2 + 8x2 + 7x3 + -7x3 = 0 5 + 8x2 + 8x2 + 7x3 + -7x3 = 0 Combine like terms: 8x2 + 8x2 = 16x2 5 + 16x2 + 7x3 + -7x3 = 0 Combine like terms: 7x3 + -7x3 = 0 5 + 16x2 + 0 = 0 5 + 16x2 = 0 Solving 5 + 16x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + 16x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + 16x2 = 0 + -5 16x2 = 0 + -5 Combine like terms: 0 + -5 = -5 16x2 = -5 Divide each side by '16'. x2 = -0.3125 Simplifying x2 = -0.3125 Reorder the terms: 0.3125 + x2 = -0.3125 + 0.3125 Combine like terms: -0.3125 + 0.3125 = 0.0000 0.3125 + x2 = 0.0000 The solution to this equation could not be determined.
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