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Simplifying (6x3 + -3x2 + 5x + 9)(7x + 9) = 0 Reorder the terms: (9 + 5x + -3x2 + 6x3)(7x + 9) = 0 Reorder the terms: (9 + 5x + -3x2 + 6x3)(9 + 7x) = 0 Multiply (9 + 5x + -3x2 + 6x3) * (9 + 7x) (9(9 + 7x) + 5x * (9 + 7x) + -3x2 * (9 + 7x) + 6x3 * (9 + 7x)) = 0 ((9 * 9 + 7x * 9) + 5x * (9 + 7x) + -3x2 * (9 + 7x) + 6x3 * (9 + 7x)) = 0 ((81 + 63x) + 5x * (9 + 7x) + -3x2 * (9 + 7x) + 6x3 * (9 + 7x)) = 0 (81 + 63x + (9 * 5x + 7x * 5x) + -3x2 * (9 + 7x) + 6x3 * (9 + 7x)) = 0 (81 + 63x + (45x + 35x2) + -3x2 * (9 + 7x) + 6x3 * (9 + 7x)) = 0 (81 + 63x + 45x + 35x2 + (9 * -3x2 + 7x * -3x2) + 6x3 * (9 + 7x)) = 0 (81 + 63x + 45x + 35x2 + (-27x2 + -21x3) + 6x3 * (9 + 7x)) = 0 (81 + 63x + 45x + 35x2 + -27x2 + -21x3 + (9 * 6x3 + 7x * 6x3)) = 0 (81 + 63x + 45x + 35x2 + -27x2 + -21x3 + (54x3 + 42x4)) = 0 Combine like terms: 63x + 45x = 108x (81 + 108x + 35x2 + -27x2 + -21x3 + 54x3 + 42x4) = 0 Combine like terms: 35x2 + -27x2 = 8x2 (81 + 108x + 8x2 + -21x3 + 54x3 + 42x4) = 0 Combine like terms: -21x3 + 54x3 = 33x3 (81 + 108x + 8x2 + 33x3 + 42x4) = 0 Solving 81 + 108x + 8x2 + 33x3 + 42x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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