PLEASE HELP NEED TO GET THIS RIGHT WILL GIVE BRAINLIEST

Factor a^3 - 3 + 3a^2 - a. a) (a - 1)(a + 1)(a + 3) b) (a^2 + 1)(a - 3) c) (a^2 - 3)(a + 1)

What is the number 321,000,000 in scientific notation? also what is the number? ?

Use the four functions below for this question. compare and contrast these four functions using complete sentences focus on the slope and y- intercept first, and then on any additional properties of each function