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Simplifying (x2 + x + -4)(x2 + -7x + -4) = 0 Reorder the terms: (-4 + x + x2)(x2 + -7x + -4) = 0 Reorder the terms: (-4 + x + x2)(-4 + -7x + x2) = 0 Multiply (-4 + x + x2) * (-4 + -7x + x2) (-4(-4 + -7x + x2) + x(-4 + -7x + x2) + x2(-4 + -7x + x2)) = 0 ((-4 * -4 + -7x * -4 + x2 * -4) + x(-4 + -7x + x2) + x2(-4 + -7x + x2)) = 0 ((16 + 28x + -4x2) + x(-4 + -7x + x2) + x2(-4 + -7x + x2)) = 0 (16 + 28x + -4x2 + (-4 * x + -7x * x + x2 * x) + x2(-4 + -7x + x2)) = 0 (16 + 28x + -4x2 + (-4x + -7x2 + x3) + x2(-4 + -7x + x2)) = 0 (16 + 28x + -4x2 + -4x + -7x2 + x3 + (-4 * x2 + -7x * x2 + x2 * x2)) = 0 (16 + 28x + -4x2 + -4x + -7x2 + x3 + (-4x2 + -7x3 + x4)) = 0 Reorder the terms: (16 + 28x + -4x + -4x2 + -7x2 + -4x2 + x3 + -7x3 + x4) = 0 Combine like terms: 28x + -4x = 24x (16 + 24x + -4x2 + -7x2 + -4x2 + x3 + -7x3 + x4) = 0 Combine like terms: -4x2 + -7x2 = -11x2 (16 + 24x + -11x2 + -4x2 + x3 + -7x3 + x4) = 0 Combine like terms: -11x2 + -4x2 = -15x2 (16 + 24x + -15x2 + x3 + -7x3 + x4) = 0 Combine like terms: x3 + -7x3 = -6x3 (16 + 24x + -15x2 + -6x3 + x4) = 0 Solving 16 + 24x + -15x2 + -6x3 + x4 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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