Are the following polynomials? 1. f (x) = 2x3 + 5x2 + 4x + 8
2. f (x) = 2x2 + 1-1
3. f(x) = 5 - 2 + 723 - 22
4. f (x) = ſæ2 – x4 +5 + 8x
5. f(x) = 2/3
6. f(x) = m + - 2

Polynomial that can be factored as (3x-4)(3x+4)

Hey hotel charges guests $19.75 a day to rent five video games at this rate which expression can be used to determine the charge for renting nine video games for one day at this hotel? pls

The area of a circle is equal to 1 dm². find the radius of the circle.