Question

find the value of х3 -y3 - z3 ​

Answer 1

Step-by-step explanation:

if x-1 is a factor then p(1)=0

ie 1-m-13+n=0

-m+n=12.......[1]

if x+3 is a factor then p(-3)=0

ie -27-9m+39+n=0

-9m+n=-12..........[2]

[1]-[2]  -m+n+9m-n=24

8m=24

m=3

substituting in [1]  n=15

HELPING HANDS ✋:)