factorise 7(2x+y)²-25(2x-y) +12
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Plz mark it brainest
=7(2x+y)^2-25(2x-y ) +12
=7[(2x) ^2+(y) ^2+2*2x*y]-25(2x-y) +12
=7(4x^2+y^2+4xy)-50x+25y+12
answer=28x^2+y^2+28xy-50x+25y+12
^2means square
=7(2x+y)^2-25(2x-y ) +12
=7[(2x) ^2+(y) ^2+2*2x*y]-25(2x-y) +12
=7(4x^2+y^2+4xy)-50x+25y+12
answer=28x^2+y^2+28xy-50x+25y+12
^2means square
shivam682:
factorise it
answer is (2x--y-3) (14x-7y-7)
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