i want to compare my answers with others to see how well i did on this please help out,i want serious answers?

Question

determine when the function is decreasing,increasing and find the relative extrema points.
a. f(x)= (x^2 - 9)^2
b. f(x)= (2x^2)/(x-2)
NB ' / ' MEANS DIVIDES AND '^' MEANS TO THE POWER

2.indicate all key features ie intercept,interval of increasing and decreasing,and relative extrema by sketching the graph of the function f(x)= x^4+6x^3+9x^2.
NB ' ^' MEANS TO THE POWER
I only want the working of the problem and not the sketches please.

Answer 1

why dont you ask your schoolmates ?
I am will ing to give you answers even if it is for school but not when you are obviously lie-ing