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Simplifying (x2 + 7x + -5)(x2 + 7x + -4) = 0 Reorder the terms: (-5 + 7x + x2)(x2 + 7x + -4) = 0 Reorder the terms: (-5 + 7x + x2)(-4 + 7x + x2) = 0 Multiply (-5 + 7x + x2) * (-4 + 7x + x2) (-5(-4 + 7x + x2) + 7x * (-4 + 7x + x2) + x2(-4 + 7x + x2)) = 0 ((-4 * -5 + 7x * -5 + x2 * -5) + 7x * (-4 + 7x + x2) + x2(-4 + 7x + x2)) = 0 ((20 + -35x + -5x2) + 7x * (-4 + 7x + x2) + x2(-4 + 7x + x2)) = 0 (20 + -35x + -5x2 + (-4 * 7x + 7x * 7x + x2 * 7x) + x2(-4 + 7x + x2)) = 0 (20 + -35x + -5x2 + (-28x + 49x2 + 7x3) + x2(-4 + 7x + x2)) = 0 (20 + -35x + -5x2 + -28x + 49x2 + 7x3 + (-4 * x2 + 7x * x2 + x2 * x2)) = 0 (20 + -35x + -5x2 + -28x + 49x2 + 7x3 + (-4x2 + 7x3 + x4)) = 0 Reorder the terms: (20 + -35x + -28x + -5x2 + 49x2 + -4x2 + 7x3 + 7x3 + x4) = 0 Combine like terms: -35x + -28x = -63x (20 + -63x + -5x2 + 49x2 + -4x2 + 7x3 + 7x3 + x4) = 0 Combine like terms: -5x2 + 49x2 = 44x2 (20 + -63x + 44x2 + -4x2 + 7x3 + 7x3 + x4) = 0 Combine like terms: 44x2 + -4x2 = 40x2 (20 + -63x + 40x2 + 7x3 + 7x3 + x4) = 0 Combine like terms: 7x3 + 7x3 = 14x3 (20 + -63x + 40x2 + 14x3 + x4) = 0 Solving 20 + -63x + 40x2 + 14x3 + x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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