If `f(x) =x^(2) -3x +2 " then " (f o f) (x)=?`

If f (x) =(x^(2) -1) " and " g (x) =(2x +3) " then " (g o f) (x) =?

If f(x+2)=(x+3)^(2)-2x , then f(x)=

Let f : R to R : f (x) = x^(2) + 2 "and " g : R to R : g (x) = (x)/(x-1) , x ne 1 . Find f o g and g o f and hence find (f o g) (2) and ( g o f) (-3)

If f (x) = x^(2) -2x + 3, then the value of x for which f (x) = f(x +1) is

If f(x)=2x^(2)+3x then f'(0)+2f'(-1)=

If a function f (x) is given as f (x) =x ^(2) -3x +2 for all x in R, then f (-1)=