Castroville Street and Vindale Avenue intersect. If the diagonal distance across the intersection is 10 meters and Castroville Street is 8 meters wide, how wide is Vindale Avenue?

The length of Vindale Avenue = x = AB = 6 m

Step-by-step explanation:

Given data

Diagonal distance AC = 10 m

BC = length of castroville Street = 8 m

Let  the length of Vindale Avenue = x

Thus a Δ ABC is formed.

From the Δ ABC

x = 6 m

Therefore the length of Vindale Avenue = x = AB = 6 m

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