8. Which of the following is the difference of the polynomial expressions
(2x2 - 5xy + y2) - (x2 – 3y2 + 2xy?
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Answer:
(2x^2-5xy+y^2)-(x^2-3y^2+2xy)=
2x^2-5xy+y^2-x^2+3y^2-2xy
On rearranging the above expression
2x^2-x^2-5xy-2xy+3y^2+y^2=
x^2-7xy+4y^2
The final answer is x^2-7xy+4y^2
Hope this helps
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