Question

O.O t^2+40+c.....t^2+40+ c=20? or t^2+40+c=400?! Who's crazy book or me?! XD

Answer 1

are you trying to complete the square?

Answer 2

find thevalue of that makes each trinomial a perfect square.....

Answer 3

so 20^2? XD

Answer 4

if you start with
\[t^2+40t\] you take half of 40, get 20,then square it, get 400
so you add 400 get
\[t^2+40t+400=(t+20)^2\]

Answer 5

So I actually need to do that in every equation? o: