What are the similarities and differences between the standard form and vertex form of a quadratic equation? when is it most appropriate to use the completing the square method to solve a quadratic equation? i have to call my teacher and answer these questions. can anyone me?

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

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

where are the images of the functions i can only see the question you typed.

step-by-step explanation:

step-by-step explanation:

mean or average is 40.6