How is the 9x^2 from 9x^2-1 related to the 3x’s from (3x+1)(3x-1)?

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"