I had a question about the following. Which terms can be eliminated in each expression.

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Problem 2. (20 points) Multiply out to obtain a sum of products: a) (a+b)(a+c')(a+d)(bcdte) b) (a+b'+c)(b'+c+d)(a+c) c) (a+b'c+d')(b'c+d'+e)(a+e')(ad+e') d) (a+be)(be+c+d)(e+c) Problem 2. (20 points) Multiply out to obtain a sum of products: a) (a+b)(a+c')(a+d)(bcdte) b) (a+b'+c)(b'+c+d)(a+c) c) (a+b'c+d')(b'c+d'+e)(a+e')(ad+e') d) (a+be)(be+c+d)(e+c)