12 in.
7 in.
18 in.
25 in.
What is the area

37,800

Step-by-step explanation:

if its a triangle then divide this by 2 and if not then id.k

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