Find the multiplicity of

2x^3+x^2-x

Mulitpilicty is how many times a root repeats

factor

factor x first

x (2x^2+x-1)

using math

(x) (x+1) (2x-1)

no roots repeat

if it is equal to 0 then the roots are

0 multiplicty 1

-1 multiplicty 1

1/2 multiplicty 1