[" 13.Foctorise: "],[[" (ii) "(x^(2)-(y^(2))/(100))," (ii) "4x^(2)-4x+1]]

Foctorise : (1)/(3) x^(2) - (8)/(x)

Foctorise : 50 x ^(2) - 2(x-2)^(2)

Factorize (i) (x^2-(y^2)/(100)) (ii)(100-9x^2) (iii)(49x^2-(1)/(4))

Foctorise : x^(2) - 2x- 9

Factorize: x^(2)+8x+15 (ii) x^(4)+x^(2)+1 (iii) x^(4)+4

Find the distance between a focus and an extremity of the minor axis of the ellipse (i) 4x^(2)+5y^(2)=100" (ii) "x^(2)/a^(2)+y^(2)/b^(2)=1 .

Find the eccentricity of the ellipse (i) (x^(2))/(16)+(y^(2))/(9)=1 (ii) (x^(2))/(64)+(y^(2))/(36)=1 (iii)25x^(2)+4y^(2)=100

find the following products (i) ((x)/(2)+2y)((x^(2))/(4)-xy+4y^(2)) (ii) (x^(2)-1)(x^(4)+x^(2)+1)

find the following products (i) ((x)/(2)+2y)((x^(2))/(4)-xy+4y^(2)) (ii) (x^(2)-1)(x^(4)+x^(2)+1)

Factorize following experssions (i) x^(4)-y^(4)" (ii)"9a^(2)-(2x-y)^(2)" (iii)"4x^(2)-9y^(2)-6x-9y