Question

t²+20t+_by Completing the square

Answer 1

the answer is 100
hope this helps you

Answer 2

hii friend. ..
here is your answer. ...

let a=t
t^2+20t
=t^2+2.t.10+(10)^2

so b=10

so ur answer is...
t^2+2.t.10+100

...