In which some logic relationship is one organism benefits while the other organism is harmed

Y=4x^2+x-1 solve using quadratic formula

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?

Find the root(s) of f (x) = (x- 6)2(x + 2)2.