Question

3 number vala swal please solve​

Answer 1

Question:

____________

Find the square of ( 4p + 1/2p ) and ( x - v/2 ) .

Answer:

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Square of ( 4p + 1/2p )

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

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

= 16p^2 + 2p^2 + 2p^2 + 1/4p^2

= 81/4p^2

Aliter: ( 4p + 1/2p ) ^2

= ( 4p )^2 + ( 2 × 4p + 1/2p ) + ( 1/2p )^2

= 16p^2 + 4p^2 + 1/4p^2

= 81/4p^2

Square of ( x - v/2 )

= ( x - v/2 )( x - v/2 )

= x( x - v/2 ) - v/2( x - v/2 )

= x^2 - xv/2 - xv/2 + v^2/4

= x^2 - xv + v^2/4

Aliter: ( x - v/2 )^2

= x^2 - ( 2 × x × v/2 ) + ( v/2 )^2

= x^2 - xv + v^2/4

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