Factorise a^7 +ab^6
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Consider, a7 + ab6
= a(a6 + b6)
= a[(a2)3 + (b2)3]
= a[a2 + b2][a4 + a2b2 + b4]
= a(a6 + b6)
= a[(a2)3 + (b2)3]
= a[a2 + b2][a4 + a2b2 + b4]
Nishchay2004:
Thanks
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