You plan to enter a song writing contest. your song must be exactly 3 1/2 minutes long. you have a song that lasts 4 1/5 minutes. how many minutes do you need to cut from the song?

x

step-by-step explanation:

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.

you can use a^2+ b^2=c^2