Question 3 (2 points) (03.06)
Using the completing-the-square method, rewrite f(x) = x2 + 10x + 7 in vertex form. (2 points)
a
f(x) = (x + 5)2 - 18
Ob
f(x) = (x + 10)2 + 25
oc
f(x) = (x + 5)2 + 7
Od
f(x) = (x + 5)2