Question

x^2 + (x+20)^2= 1200

Answer 1

\[x^2+x^2+40x+400=1200\] is a start
then
\[2x^2+40x=800\] or if you divide by 2
\[x^2+20x=400\]

Answer 2

you know how to solve this?

Answer 3

no and frustration is rising.

Answer 4

^ ahahaha

Answer 5

quadratic equation you speak it?

Answer 6

Order of operations.
First square what is in the parenthesis.

Answer 7

\((x+20)(x+20)\)
use FOIL.