" 15."x^(3)-3x^(2)-9x-5" Ferment "

Solve x^3-3x^2-9x-5

Factorize x^(3)-3x^(2)-9x-5

Factorize x^(3)-3x^(2)-9x-5

Factorise : - P(x)=x^(3)-3x^(2)-9x-5

The minimum value of the function f (x) =x^(3) -3x^(2) -9x+5 is :

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

Using the Factor theorem, show that (i) (x-2) is a factor of x^(3)-2x^(2)-9x+18 . Hence factorise the expression x^2-2x^2-9x+18 completely. (ii) (x+5) is a factor of 2x^3+5x^2-28x-15 . Hence factorise the expression 2x^3+5x^2-28x-15 completely. (iii) (3x+2) is a factor of 3x^(3)+2x^(2)-3x-2 . Hence factorise the expression 3x^3+2x^2-3x-2 completely.