this is a step I ran across in a Doppler effect problem, it might be late but I just dont know why im stumped here
there are two different, routes I can take with this problem and they both give me expressions I dont know how to solve. I would like to know how to solve them both, so I will post both. thank you for your time
1.052 = (1-x/340)/(1 + x/340)
200 = [4000/(1-x/340)] - [4000/(1+x/340)]
The Attempt at a Solution
ive done the rest of the problem, just dont get this step. is it a quadratic maybe?