document.write( "Question 129588: I know that it is possible to add two polynomianls each of degree 3, and have the sum be a polynomial of degree 2, what I need is to see an example of this please. Thank you \n" ); document.write( "

Algebra.Com's Answer #94614 by jim_thompson5910(35256) $\"\"$ $\"About$

You can put this solution on YOUR website!
Example:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Let's add $\"x%5E3-2x%2B1\"$ and $\"-x%5E3%2B5x%5E2%2B7\"$ (notice these are both polynomials of degree 3) to get\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"%28x%5E3-2x%2B1%29%2B%28-x%5E3%2B5x%5E2%2B7%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"%28x%5E3-x%5E3%29%2B5x%5E2-2x%2B%281%2B7%29\"$ Group like terms\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"5x%5E2-2x%2B8\"$ Combine like terms\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Notice how the result is a polynomial of degree 2\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );