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 P: 9 Thanks for the help.... but when I then integrate WRT y I get 2∫1 [5x2y+(2/3) y3] which I have to substitute in my limits of y=x and y=2-x but then this leaves me with a (2/3) (2-x)3 term, which does not simplify well, and does not lead me to the correct answer. Any ideas where I have gone wrong, thanks!