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Simplifying (x2 + -4x)(x2 + 4x) = x2 + -4x + 20 Reorder the terms: (-4x + x2)(x2 + 4x) = x2 + -4x + 20 Reorder the terms: (-4x + x2)(4x + x2) = x2 + -4x + 20 Multiply (-4x + x2) * (4x + x2) (-4x * (4x + x2) + x2(4x + x2)) = x2 + -4x + 20 ((4x * -4x + x2 * -4x) + x2(4x + x2)) = x2 + -4x + 20 ((-16x2 + -4x3) + x2(4x + x2)) = x2 + -4x + 20 (-16x2 + -4x3 + (4x * x2 + x2 * x2)) = x2 + -4x + 20 (-16x2 + -4x3 + (4x3 + x4)) = x2 + -4x + 20 Combine like terms: -4x3 + 4x3 = 0 (-16x2 + 0 + x4) = x2 + -4x + 20 (-16x2 + x4) = x2 + -4x + 20 Reorder the terms: -16x2 + x4 = 20 + -4x + x2 Solving -16x2 + x4 = 20 + -4x + x2 Solving for variable 'x'. Reorder the terms: -20 + 4x + -16x2 + -1x2 + x4 = 20 + -4x + x2 + -20 + 4x + -1x2 Combine like terms: -16x2 + -1x2 = -17x2 -20 + 4x + -17x2 + x4 = 20 + -4x + x2 + -20 + 4x + -1x2 Reorder the terms: -20 + 4x + -17x2 + x4 = 20 + -20 + -4x + 4x + x2 + -1x2 Combine like terms: 20 + -20 = 0 -20 + 4x + -17x2 + x4 = 0 + -4x + 4x + x2 + -1x2 -20 + 4x + -17x2 + x4 = -4x + 4x + x2 + -1x2 Combine like terms: -4x + 4x = 0 -20 + 4x + -17x2 + x4 = 0 + x2 + -1x2 -20 + 4x + -17x2 + x4 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -20 + 4x + -17x2 + x4 = 0 The solution to this equation could not be determined.
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