math
posted by Anonymous .
find the domain and all the critical points of the function.
a) x(the square root of 94x^2)
The domain is x must be less than or equal to positive or negative two but when i go to do the derivative to find the critical points i always get stuck. can someone show me step by step?

f(x) = x√(94  x^2)
domain: √94 ≤ x ≤ √94
(looking at your answer of 2≤x≤2, I think that 9 was supposed to be a ( , is that right ?)