Q. 35.0( 11 Votes )

The factors of x2+4y2+4y-4xy-2x-8 are
A. (x-2y-4)(x-2y+2)

B. (x-y+2)(x-4y-4)

C. (x+2y-4)(x+2y+2)

D. none of these

Answer :

We have ,


=


=


Let a = ( x-2y) , then the expression becomes ,


=


=


= a(a-4) + 2( a -4)


=


Put a = ( x -2y)


=


Thus the factors of

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