4x2+y2+14x-7y-4xy+12 Factorise it.

Answer :

We have  :  4x2 + y2  + 14x  - 7y  - 4xy  + 12 , we can write it , As :

4x2 + y2  + 8x  + 6x  - 4y  - 3y - 2xy  - 2xy + 12

4x2 - 2xy  + 8x  - 2xy + y2  - 4y + 6x  - 3y + 12

2x  ( 2x - y  + 4 )  - y ( 2x - y  + 4 )  + 3 ( 2x - y  + 4 )

( 2x  - y  + 3 ) ( 2x - y  + 4 )                                                       ( Ans )

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