SOLUTION: how do i do this?evaluate 3x^2y+2xy+5y for x=3 and y=2 thanks so much

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Question 83317This question is from textbook
: how do i do this?evaluate 3x^2y+2xy+5y for x=3 and y=2
thanks so much This question is from textbook

Answer by adamchapman(301) About Me  (Show Source):
You can put this solution on YOUR website!
Lets do this step-by step:
3x%5E2y%2B2xy%2B5y
substitute x=3-
this means we replace all x's with the number 3:
3%283%5E2%29y%2B2%283%29y%2B5y
which is the same as
3%289%29y%2B2%283%29y%2B5y
which simplifies to
27y%2B6y%2B5y
now replace the y terms with y=2
27%282%29%2B6%282%29%2B5%282%29
which is the same as
54%2B12%2B10
and
54%2B12%2B10=76
so the answer in its simplest form is 72
I hope this helps you.
Adam