SOLUTION: please help me to multiply and put in simplest form (b+4/2)^2 * (3/b+4)^3 (the teacher gave me a hint : (b+4)^2 is =/ b^2 +16) so confused!!!

Question 536799: please help me to multiply and put in simplest form
(b+4/2)^2 * (3/b+4)^3
(the teacher gave me a hint : (b+4)^2 is =/ b^2 +16) so confused!!!
Answer by fcabanski(1391) (Show Source): You can put this solution on YOUR website!
To multiply (b+4)*(b+4) use FOIL - First times first, outside times outside, inside times inside, last times last.

But before doing that write out exactly what is here.

Notice that two of the (b+4)'s in the denominator cancel with the two (b+4)'s in the numerator.

Check by setting b to something (try b=0). Check it in the original equation and in the answer. Don't use b=-4, because the expression is undefined when b=-4.

If you need help understanding math so you can solve these problems yourself, then one on one online tutoring is the answer ($30/hr). If you need faster solutions with guaranteed detailed answers, then go with personal problem solving ($3.50-$5.50 per problem). Contact me at fcabanski@hotmail.com

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