what is the expanded form of (a+b) ka hole cube
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=(a+b)(a+b)²
=(a+b)(a²+2ab+b²)
=a(a²+2ab+b²)+b(a²+2ab+b²)
=a²+2a²b+ab²+a²b+2ab²+b³
=a³+3a²b+3ab²+b³
=a³+b³+3ab(a+b)
=(a+b)(a²+2ab+b²)
=a(a²+2ab+b²)+b(a²+2ab+b²)
=a²+2a²b+ab²+a²b+2ab²+b³
=a³+3a²b+3ab²+b³
=a³+b³+3ab(a+b)
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