SOLUTION: I am having so much trouble with 3 problems. I keep doing them over and over and coming up with different answers each time. I would really love if someone could help me. Divid

Question 251062: I am having so much trouble with 3 problems. I keep doing them over and over and coming up with different answers each time. I would really love if someone could help me.
Divide:
(42b^3 + 9b^2 + 42b + 27) / (6b + 3)
Multiply:
(s + t) * (s^2 - st + t^2)
Multiply:
81d^2/4d^2 - 32d + 64 (written as a fraction) * 4d-16/9d (also written as a fraction)
Thank you so so much!!!
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
You will have a better chance of a response if you input one problem as a time.
Otherwise they are too time consuming and we also might get the idea we are doing your homework for you.
The first problem is easy but time consuming to explain so I will tackle the second one for you
(s + t) * (s^2 - st + t^2)
multiply (s^2 - st + t^2) by s and then by t and add them
s*(s^2 - st + t^2)+t*(s^2 - st + t^2)
Do basically the same thing with the third problem
4d*(81d^2/4d^2 - 32d + 64)-16/9d*(81d^2/4d^2 - 32d + 64))
Pay attention to signs-- plus and minus
Resubmit the first one on its own.

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