SOLUTION: I am not sure how to divide polynomials and I need some help please. here is my problem.(7x^2+64x+9) divided by (x+9)

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Question 207557: I am not sure how to divide polynomials and I need some help please. here is my problem.(7x^2+64x+9) divided by (x+9)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%287x%5E2%2B64x%2B9%29%2F%28x%2B9%29 Start with the given expression.


%28%28x%2B9%29%287x%2B1%29%29%2F%28x%2B9%29 Factor 7x%5E2%2B64x%2B9 to get %28x%2B9%29%287x%2B1%29.


%28highlight%28%28x%2B9%29%29%287x%2B1%29%29%2F%28highlight%28%28x%2B9%29%29%29 Highlight the common terms.


%28cross%28%28x%2B9%29%29%287x%2B1%29%29%2F%28cross%28%28x%2B9%29%29%29 Cancel out the common terms.


7x%2B1 Simplify.


So %287x%5E2%2B64x%2B9%29%2F%28x%2B9%29 simplifies to 7x%2B1.


In other words, %287x%5E2%2B64x%2B9%29%2F%28x%2B9%29=7x%2B1