SOLUTION: Multiplying a polynomial by a monomial. 3y(y-3)+5=3(y<2>-2y)-2y sorry i dont know how to make a exponet on th computer so youll see i but them in <> hope you understand

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Multiplying a polynomial by a monomial. 3y(y-3)+5=3(y<2>-2y)-2y sorry i dont know how to make a exponet on th computer so youll see i but them in <> hope you understand       Log On


   

Question 264702: Multiplying a polynomial by a monomial.
3y(y-3)+5=3(y<2>-2y)-2y
sorry i dont know how to make a exponet on th computer so youll see i but them in <> hope you understand
this is what i did : 3y(y-3)=5=3(y<2>-2y)-2y <-- original problem
3y<2>-3+5=3y<2>-2y-2y <-- distributive property
6y<2>-4y=2 <-- combining like terms
and now i dont know if i combine 6y<2> and -4y

thanks :)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Note: to write x%5E2 type "x^2" (without quotes)


3y%28y-3%29%2B5=3%28y%5E2-2y%29-2y Start with the given equation.


3y%5E2-9y%2B5=3y%5E2-6y-2y Distribute


3y%5E2-9y%2B5-3y%5E2%2B6y%2B2y=0 Get every term to the left side.


-y%2B5=0 Combine like terms.


5=y Add y to both sides.


So the solution is y=5