Question

Is x+5 a factor
of
x^3+ 3x^2+15x+20?​

Answer 1

Answer:

No x+5 is not a factor of x³+3x²+15x+20 because if we divide x³+3x²+15x+20 by x+5 it will not divide it completely

Answer 2

Explanation:

to check whether x+5 is a factor or not

put x= -5

(-5)^3 + 3*(-5)^2 +15(-5)+20

-105

hope this will help