Victoria V. answered 10/25/16
Tutor
5.0
(402)
Math Teacher: 20 Yrs Teaching/Tutoring CALC 1, PRECALC, ALG 2, TRIG
Not really sure of this question, but can do the following
x2-16x+64 = (x-8)2
and any real number squared is always positive (>0),
so perhaps your teacher wants you to say
x2-16x+64 ≥ 0