How do I solve this?

Step-by-step explanation:

The first thing you have to do, is rewrite the given expression

Then you plug in the given values

Finally you simplify

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.