Question

multiply using "FOIL" ?
(t – 1/5)^2

Answer 1

The ^2 means square, which means to multiply the things by itself.

So, that means,

(t- (1/5)) * (t- (1/5))

Answer 2

First Inner Outer Last
(t-1/5)*(t-1/5) = t*t +-1/5t -1/5t +(-1/5)(-1/5) = t^2 -2/5t +1/25

Answer 3

thank you!