Question

jcn

Answer 1

take half of the coefficient of `x`
square it

Answer 2

Then what? lol I dont know much

Answer 3

then you're done !
unless you're puzzled with the question : `why the heck this works ? `

Answer 4

Well the problem is I don't know how to square or anything haha

Answer 5

its okay :) look at the given expression :
can you tell me the coefficient of `x` ?

Answer 6

`8`x + x² + __

8 is the coefficient of x,
whats half of 8 ?

Answer 7

So it would be 8 divided by 2 =

Answer 8

That equals 4 and then multiply that by itself so 4 times 4 which equal 16

Answer 9

Okay thanks guys!