Question

Using the factor theorem factorise the cubic polynomial 2x³ + 7x² + 7x +2:

Answer 1

Answer:Answer:

   

Step-by-step explanation:

Given : Expression  

To find : Factorise the expression?

Solution :

Expression  

Applying rational root theorem, which state that possible roots are in form  where p is the factor of coefficient of higher degree and q is the factor of constant.

Possible roots are  

Substitute x=1 in equation,

So, x=1 is not a root.

Put x=-2,

So, x=-2 is one of the root.

Put x=-3

So, x=-3 is one of the root.

Put  

So,  is one of the root.

Therefore, The factors of given expression is  

Step-by-step explanation: