a function is defiend by the following rule:

f (x) is

0 if x lesser than/equal to -3

-1 if -3<x<0

x if x is greater then or equal to 0

find i) F (-3) + f (-2) + f (2)

ii) f (a ^2)

another question:

4 ^ (x+1)/ ( 4 ^(x + 2) – 4 ^ (x) )

and another.

x-1 is a factor of x ^ 3 - (2 X ^ 2) + px + 6

find the value of P

and another

fully factorise the polynomial P(X) = X ^4 - 7x^3 + 12x^2 + 4x -16

given that x = 2 is a double root of P(x)