80. Factorise: (a + b)³- 8.
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Answer:
(a+b)³-8=(a+b)³-2³
=(a+b-2)[(a+b)²+2(a+b)+4]
=(a+b-2)(a²+b²+2ab+2a+2b+4)
=(a+b-2)(a²+b²+2(ab+a+b)+4)
Step-by-step explanation:
Answered by
1
Answer:
(a+b-2)(a2+b2+2ab+2a+2b+4)
Step-by-step explanation:
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