Amachine can manufacture 1800 pencils in 30 minutes. at this same rate, how many minutes will it take to manufacture 3000 pencils?

show work : )

My work above shows how I solved your problem.

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

i think the answer is b.

step-by-step explanation:

not 100% sure though.