find f''(x) if f(x)= 3(�ãx2-2x+1)

Answer 1

Not sure what ã means. If your f(x) is

3sqrt(x^2 - 2x + 1) then it's just 3(x-1)

'splain what the symbol means and you can get some help. Different browsers display extended symbols in different ways.

Answer 2

its like a sub three times the squareroot of x^2-2x+1

Answer 3

oh, so you mean cube root? We can write that as a power:

f(x) = 3(x^2 - 2x + 1)^1/3 = 3(x-1)^2/3
f' = 3 * 2/3 (x-1)^-1/3
= 2/(x-1)^1/3