answer these.
if you answer wrong I will report you. :(
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first calculate all the x no and then y no and then place it according to their position
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1) 14x^2 - 2xy +y^2 + 5xy - 2y^2 + 5 + x^2 + 3y^2 + 7
= 15x^2 + 3xy + 2y^2 + 12
2) 7 - y^3 + y + 9y^2 + 2y^3 + 6 + y^2 + 5y - 19y +3y^3 -.
2y^2 + 15
= 28 + 4y^3 - 8y^2 - 13y
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