Question

solve using the zero-factor property
(t-4)(t-4)=0

Answer 1

Zero-factor (or) Zero-Product property states that if

a . b = 0 ; then a = 0 or b = 0


So if (t-4)(t-4) = 0 means ; t-4 = 0 ; t-4 = 0

S t = 4 and t=4 are the two solutions.