Find the zeros of the function algebraically. Show all work.

Question

f(x)=x^2-8x+15
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10x

Answer 1

F(x) = x^2 - 8x + 15

15 = (-1)*(-15 = (-3)*(-5).
Choose the pair of factors whose sum =
B = -8.

(X-3)(X-5) = 0

x-3 = 0
X = 3.

x-5 = 0
X = 5.