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" 以(ii) "2y^(3)+y^(2)-2y-1...

" 以(ii) "2y^(3)+y^(2)-2y-1

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Factorise : - 2y^(3)+y^(2)-2y-1

Subtract : 5y^(4) - 3y^(3) + 2y^(2) + y - 1 from 4y^(4) - 2y^(3) - 6y^(2) - y + 5

If x =3 and y=1, then find the values of (i) 3x-2y" "(ii) (22)/(3)x^(2)-(7)/(2)y^(2)

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If p(y)=y^(3)+y^(2)+y+1 find : (i) y(1) (ii) y(-1)

If (x^(2) + y^(2))/(x^(2) - y^(2)) = 2(1)/(8) , find : (i) (x)/(y) (ii) (x^(3) + y^(3))/(x^(3) - y^(3))