Question

Help?!

y=x+4
y^2+x^2=40,000

Answer 1

and the question is
where to they intersect?
right?

Answer 2

you can replace \(y\) by \(x+4\) and solve
\[(x+4)^2+x^2=40,000\]

Answer 3

\[x^2+8x+16+x^2=40,000\\
2x^2+8x=39984\\
x^2+4x=19992\] etc

Answer 4

thank you

Answer 5

yw

Answer 6

btw you can solve using the quadratic formula but it is probably easiest to complete the square in this case