SOLUTION: the area of a rectangle is 12 y^3+6y^2+4y.one dimension is 2y.what is the other dimension?

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Question 457722: the area of a rectangle is 12 y^3+6y^2+4y.one dimension is 2y.what is the other dimension?
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

the area of a rectangle is A=ab
let A=12+y%5E3%2B6y%5E2%2B4y and one dimension a=+2y
find b
A=ab
b=A%2Fa
b=%2812+y%5E3%2B6y%5E2%2B4y%29%2F2y
b=2y%286y%5E2%2B3y%2B2%29%2F2y
b=cross%282y%29%286y%5E2%2B3y%2B2%29%2Fcross%282y%29

b=6y%5E2%2B3y%2B2...solution