Question

If -1 is zero of polynomial 2xcube - xsquare -5x -2 find its other root

Answer 1

Answer:

12

Step-by-step explanation:

x=-1==2^3-x^2-5x-2

2^3-(-1)^2-5 (-1)-2

=8+1+5-2

=14-2

=12

So Its other root = 12