Which one is it?

I'll mark brainliest if correct

I'll give brainliest if you answer right : )

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

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?