Question

P3+1/8p3=?if 2p+1/p=4​

Answer 1

Step-by-step explanation:

p + 1/2p = 4 ---( 1 )

*********************

We know the algebraic identity

x³ + y³ = ( x + y )³ - 3xy( x + y )

******************************

Now ,

p³ + ( 1/2p )³

= p³ + 1/8p³

= ( p + 1/2p )³ - 3 × p × 1/2p( p + 1/2p )

= 4³ - 3 × 1/2 × 4

= 64 - 6

= 58