Please please please please please please please please please please please please please please please please please please tell me fastly
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( 2a )^3 + ( 3b )^3 = ( 2a + 3b ){ ( 2a )^2 - 2a*3b + ( 3b )^2 }
8a^3 + 27b^3 = ( 2a + 3b )( 4a^2 - 6ab + 9b^2 )
8a^3 + 27b^3 = 8a^3 - 12a^2b + 18ab^2 + 12a^2b - 18ab^2 + 27b^3
8a^3 + 27b^3 = 8a^3 + 27b^3
Ans. ( 2a )^3 + ( 3b )^3 = ( 2a + 3b ){ ( 2a )^2 - 2a*3b + ( 3b )^2 } , verified.
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