53.37
Step-by-step explanation:
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
circle area = pi * radius^2
if diameter = 10 then radius = 5
circle area = pi * 5^2
circle area = pi * 25
circle area = 78.5398163397 square units
step-by-step explanation: