So I know how to do division and all but I was wondering what’s the fastest way to get the answer since I have to find out how much 90 goes into 810?

Well you need to do division. If you want to make it easier you can divide both numbers by 10 and get 9/81. Both will give you 9 as the answer

810 devided by 90

Step-by-step explanation:

Fact family

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option