A rectangle has a height of
4 and a width of x^2 +3x +2

Carly bought a new house for $125,000. the value of the house appreciates approximately 3.5% each year. what will be the value of the house after 10 years?

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

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).