I need help with these two questions.


What are the greastest and least values of the Function:

f(x) = (2x-1)(1-x) for 0 =< x =< 1



and



Find the area bounded by the curve y = x^2 + 2x - 3 and the x axis for -4 =< x =< -1

Can you please show all working so I can understand them.