SOLUTION: t^2-9t+ ___ =( t-___)^2 in the second blank I got 9/2 but im not sure what the first blank is I got 9 but teacher says it wasnt right ??

Algebra ->  Equations -> SOLUTION: t^2-9t+ ___ =( t-___)^2 in the second blank I got 9/2 but im not sure what the first blank is I got 9 but teacher says it wasnt right ??      Log On


   

Question 299454:
t^2-9t+ ___ =( t-___)^2

in the second blank I got 9/2 but im not sure what the first blank is I got 9 but teacher says it wasnt right ??
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Simply take half of 9 to get 9%2F2. Now square 9%2F2 to get 81%2F4. Add this to t%5E2-9t to get t%5E2-9t%2B81%2F4. It turns out that you can factor t%5E2-9t%2B81%2F4 to get %28t-9%2F2%29%5E2.


So t%5E2-9t%2B81%2F4=%28t-9%2F2%29%5E2