" Solve: "x^(3)+2x^(2)-9x-18

The polynomial x^(3)-2x^(2)-9x+18 is equivalent to

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.

Solve : x^3-5x^2-9x+45=0

Solve: x^2+3x+9=0

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

Solve x^2+3x+9=0

Solve x^2+3x+9=0

Solve x^2+3x+9=0