Factorise `(i) x ^(2) - 2x ^(2) - x +2`
(ii) `x ^(3) - 3x ^(2) - 9x -5`
(iii) ` x ^(3) + 13 x ^(2) + 32 x + 20`
(iv) ` y ^(3) + y ^(2) -y -1`

Factorise 3 x^(2) + 6 x^(2)y + 9 x y^(2)

Factorise : 3x^2 + 6x^2y + 9xy^2 .

Find the degree of each of the polynomials given below (i) x ^(5) - x ^(4) +3 (ii) x ^(2) + x -5 (iii) 5 (iv) 3x ^(6) + 6y ^(3) -7 (v) 4- y ^(2) (vi) 5t - sqrt3

Factorise : x^3+13x^2+32x+20

(3x - 2y)^2 - (3x - 2y)^2 = ___

Use suitable idntities to find the following products (i) (x +5) (x +2) (ii) (x-5) (x-5) (iii) (3x +2) (3x -2) (iv) (x ^(2) + (1)/( x ^(2)) )(x ^(2) - (1)/( x ^(2))) (v) (1+x) (1+x)

3 x^2 + 6 x^2 y + 9x y^2 = ___