Question

What number would you add to the polynomial below to complete the square?
x^2+17 I got a decimal.

Answer 1

I got 8.5

Answer 2

x^2 term already has a 1 so that is a good start.
next take 1/2 of the coefficient of x which is missing, are you sure that it is just 17 or is it 17x ??

Answer 3

It's 17x Sorry for my spelling.

Answer 4

O.K. then the coefficient of x is 17, take 1/2 of 17 or 17/2,
Now square that and you will get 289/4 That is the value that would be added.

That would give you x^2 +17x + 289/4 or (x+17/2)^2

Answer 5

Good luck with these, I gotta run.

Answer 6

Ok,Bye :(