Question

Factorise-

x cube + 13x square + 32x = 20

Answer 1

If you find a root by trial and error, 
Then you can solve this
Then divide that root with the polynomial to get other roots
 x = 2 satisfies it
So, x-2 is a root
Divide it to get other roots which are 1,10 
So p(x) = (x-2)(x-1)(x-10)