1. Find the zero of (write just the number, If there is no zero, write "none") Please show work.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

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?