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

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) (Show Source): You can put this solution on YOUR website!
Lets do this step-by step:

substitute -
this means we replace all x's with the number 3:

which is the same as

which simplifies to

now replace the y terms with

which is the same as

and

so the answer in its simplest form is 72
I hope this helps you.
Adam
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