Question

ax³+bx²+cx+d=0
In the equation above a,b,c, and d are constants. If the equation has roots -1, -3, and 5, which of the following is a factor of ax³+bx²+cx+d ?
1. x-1
2. x+1
3. x-3
4. x+5

Answer 1

Answer:

2. x + 1

Step-by-step explanation:

The roots are -1, -3, and 5, so the factors are:

x − (-1) = x + 1

x − (-3) = x + 3

x − 5

Only the second option is one of the factors.