Math (PreCalculus)
posted by Ben .
Can someone help me with this? Thanks!
Find the zeros of the function algebraically. f(x)=x^28x+15

10x

Math (PreCalculus) 
bobpursley
xeroes will be when the numberator is zero.
x^28x+15=0
(x5)(x3)=0
xeroes at 3,and 5 
Math (PreCalculus) 
Ben
@bobpursley
How did you get 3 and 5?
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