Question

Select all the zeros of the function f(x)=(x+10)(x−5)(x+1).

– 10


– 5


– 1


0


1


5


10

Answer 1

-10, -1, 5

To find the zeros of a function, you have to set each factor to zero in separate equations, and then solve for x.

x+10=0

Subtract 10 from each side

x=-10

x-5=0

Add 5 to both sides

x=5

x+1=0

Subtract 1 from both sides

x=-1