Question 27877
<pre><font size = 4><b>Division of a polynomial by a monomial

 7x<sup>3</sup>y<sup>2</sup> - 21x<sup>2</sup>y + 35x<sup>3</sup>y<sup>4</sup>
————————————————————————
       7x<sup>2</sup>y

There are three terms in the numerator. Therefore write
a row of lines and signs, using the signs between the
terms of the numerator


——————— - ——————— + ————————

Then write the terms in order above the lines:

 7x<sup>3</sup>y<sup>2</sup>     21x<sup>2</sup>y     35x<sup>3</sup>y<sup>4</sup>
——————— - ——————— + ————————

Then write the denominator under each line: 


 7x<sup>3</sup>y<sup>2</sup>     21x<sup>2</sup>y     35x<sup>3</sup>y<sup>4</sup>
——————— - ——————— + ————————
 7x<sup>2</sup>y      7x<sup>2</sup>y       7x<sup>2</sup>y

Now you have three problems to solve

In the first, cancel the 7's, subtract the exponents of x
any y, and get xy

          21x<sup>2</sup>y     35x<sup>3</sup>y<sup>4</sup>
    xy - ——————— + ————————
          7x<sup>2</sup>y       7x<sup>2</sup>y 

In the second divide 21 by 7 getting 3. Cancel the x<sup>2</sup>'s
and the y, getting just 3.

                    35x<sup>3</sup>y<sup>4</sup>
          xy - 3 + ————————
                     7x<sup>2</sup>y

In the third, divide 35 by 7, getting 5. Subtract the 
exponents of the x's, and the y's, getting 5xy<sup>3</sup>

                    
          xy - 3 + 5xy<sup>3</sup>

Edwin
AnlytcPhil@aol.com</pre>