9. Find the equation of a line through (-1,0.5) and
perpendicular to 5y-4x+7=0​

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

step-by-step explanation:

what is the figure? attach a picture.