please help me with this:
(a+b)^3-(a-b)^3
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Answer:
(a+b)^3-(a+b)^3=2b×(3a^2+b^2)
a³+b³+3ab(a+b)-[a³-b³-3ab(a-b)]
a³+b³+3a²b+3ab²-a³+b³+3a²b-3ab²
2b³+6a²b
2b(b²+a²)
HOPE IT'S HELPFUL...