(x²-2x+4) × (x²+2x+4)
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Answer:
= (x²-2x+4) × (x²+2x+4)
= x²(x² + 2x + 4) - 2x(x² + 2x + 4) + 4(x² + 2x + 4)
= + 2x³ + 4x² - 2x³ + 4x² + 8x + 4x² + 8x + 16
= 29x^13+16
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