Set all the factors equal to 0 and solve for x.
1) x + 6 = 0
x = -6
2) x + 8 = 0
x = -8
3) x + 15 = 0
x = -15
When the function is graphed, you can see that the function crosses the numbers -15, -8, and -6 on the x-axis. These are the zeros.
1) x + 6 = 0
x = -6
2) x + 8 = 0
x = -8
3) x + 15 = 0
x = -15
When the function is graphed, you can see that the function crosses the numbers -15, -8, and -6 on the x-axis. These are the zeros.