Question

factorise— (x²-1)² + 8x (x² + 1) + 19x²​

Answer 1

Step-by-step explanation:

x⁴

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Answer 2

Answer:

x⁴+8x³+17x²+8x+1

Step-by-step explanation:

(x²-1)² + 8x (x²+ 1) +19x² = x⁴ + 1 - 2x² +8x³+8x +19x²

= x⁴+8x³+17x²+8x+1

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