1.

3 a + 5 b whole cube

Answer» BONJOUR !!!❤❤❤

( 3a + 5b )³

Formula to be USED :

( a + B )³ = a³ + b³ + 3a²b + 3ab²

=> ( 3a )³ + ( 5b )³ + 3( 3a )²(5b ) + 3( 3a )( 5b )²

=> 27a³ + 125b³ + 135a²b + 225ab²


Hope it helps.....✌✌

Be BRAINLY


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