Question

Please help
I'll give a medal.

Answer 1

@AlexandervonHumboldt2

Answer 2

x*2 + 16x
so if we want create a square, we should have this form
(ax)^2 + 2abx + b^2

now
x^2 + 16x + ? = (ax)^2 + 2abx + b^2

find a from x^2 = (ax)^2
then find b from 2abx = 16x

and finally find ? from b^2

;)

Answer 3

\[\frac{ 16 }{ 2 }^2=64\]

Answer 4

@a1234

Answer 5

is my answer correct?

Answer 6

I think so

Answer 7

If you want to check you can see if the new expression can be factored.

x^2 + 16x + 64
(x + 8)(x + 8)

Answer 8

64 is correct, yes