Anyone know how to factor 4x^2-4x-80?

How does a low unemployment rate affect a nation's economy? a. the nation has a higher number of productive resources. b. the nation can spend more money on for unemployed people. c. the nation can save money by paying lower salaries to a large workforce. reset

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Factor the polynomial by its greatest common monomial factor.