Question

What are the zeros of f(x) = x2 - 10x + 25?

O
A. x= 5 only
B. x=-5 and x = 10
ооо
C. x= -5 and x = 5
D. x= -5 only

Answer 1

A. (strictly speaking the zeroes are '5 multiplicity 2').

Explanation:

x^2 - 10x + 25 = 0

(x - 5)(x - 5 ) = 0

x = 5 (multiplicity 2).