derivation of formula a³-b³
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a³-b³= (a-b)³ - 3( a²b + ab²)
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Shanayaa Singh Rajput
Hope this helps. All the best.
Thank you
Your Friend
Shanayaa Singh Rajput
Answered by
1
Step-by-step explanation:
Step-by-step explanation:
a³-b³=a³-b³+a²b-a²b+b²a-b²a
=a³-a²b -b³+ab²+a²b-b²a
=a²(a-b)+b²(a-b)+ab(a-b)
=(a-b)(a²+b²+ab)
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