simplify (a-b)³ (a³-b³)
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Answered by
0
Answer:
3ab(a+b)
Step-by-step explanation:
(a+b) ³-a³-b³
= a^3+3a^2.b + 3ab^2+b^3 - a^3 - b^3
= 3a^2.b + 3ab^2
= 3ab(a+b)
Answered by
0
Answer:
= (a-b)³ -(a³-b³)
= a³ - 3a²b+ 3 ab²-b³-a³+b³
= 3a²b+3ab²
Step-by-step explanation:
Concept: using Factorisation Identity a3 -b3 = (a-b) (a2+ab+b2)
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