Factorise:
a). (a²)²- (b²)²
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Step-by-step explanation:
(a²)²-(b²)²
(a²+b²)(a²-b²)
=(a²+b²)(a+b)(a-b)
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Answer:
Step-by-step explanation:
(a²)²- (b²)²
=(a²+b²) (a²-b²)
=(a²+b²) (a+b) (a-b)