Hey! I have been helping you out with a bunch of these questions so I think it is time you try a bit of it on your own.
Remember do the left side of the () multiplied by the left side of the other () first.
(5x * 8x)
Then the left side of the first () multiplied by the right side of the right ().
(5x * 5)
Then the right side of the left () multiplied by the left side of the right ().
(5 * 8x)
And then do the right side of both () multiplied together.
(5 * 5)
Then combine like terms and you have your answer. If you need help comment on this. :)