I don’t understand pls help

x ≤ 15

Step-by-step explanation:

the first step is to add 3 to each side to get:

x/5 ≤ 3

last step is to multiply each side by 5 to get:

x ≤ 15

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

y=mx+