Simplify : (i) (x – y) (x + y) (x2 + y2
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Answer:
(x²-y²) (x+y)² -2ab
Step-by-step explanation:
(x – y) (x + y) (x² + y²)
= (x²-y²) (x²+y²)
= (x²-y²) (x+y)² -2ab
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