Question

(2x+1)^2+x^2=40,000
I am solving for x.

Answer 1

@zepdrix can you help?

Answer 2

\[\Large\rm \color{orangered}{(2x+1)^2}+x^2=40000\]I guess we would want to expand out this orange part first.

So what's that give you? :)

Answer 3

(2x+1)(2x+1) @zepdrix

Answer 4

Yes, but you need to FOIL that out :)