4 x + 2 y ka whole cube
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Hi ,
********************************
We know the algebraic identity ,
( a + b )³ = a³ + 3a²b + 3ab² + b³
*********************************
Now ,
( 4x + 2y )³
= ( 4x )³+3×(4x)²×2y +3×4x×(2y)²+(2y)³
= 64x³ + 96x²y + 48xy² + 8y³
I hope this helps you.
:)
********************************
We know the algebraic identity ,
( a + b )³ = a³ + 3a²b + 3ab² + b³
*********************************
Now ,
( 4x + 2y )³
= ( 4x )³+3×(4x)²×2y +3×4x×(2y)²+(2y)³
= 64x³ + 96x²y + 48xy² + 8y³
I hope this helps you.
:)
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