1.

Find the following products of the following expression: (4x + 3y) (16x2 - 12xy + 9y2 )

Answer»

(4x + 3y) (16x2 - 12xy + 9y2

= (4x + 3y) [(4x)2 - (4x) × (3y) + (3y)2

= (x + b) (x2 - ab + b2 ) [Where a = 4x, b = 3y] 

= a3 + b3 

= (4x)3 + (3y)3 

= 64x3 + 27y3



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