document.write( "Question 93576: (x^3+2x^2+x+12)/(x+3) \n" ); document.write( "
Algebra.Com's Answer #68149 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! Let's simplify this expression using synthetic division\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Start with the given expression \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "First lets find our test zero:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "so our test zero is -3\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now set up the synthetic division table by placing the test zero in the upper left corner and placing the coefficients of the numerator to the right of the test zero.
\n" ); document.write( "\n" ); document.write( "Start by bringing down the leading coefficient (it is the coefficient with the highest exponent which is 1)\r \n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Multiply -3 by 1 and place the product (which is -3) right underneath the second coefficient (which is 2)\r \n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Add -3 and 2 to get -1. Place the sum right underneath -3.\r \n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Multiply -3 by -1 and place the product (which is 3) right underneath the third coefficient (which is 1)\r \n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Add 3 and 1 to get 4. Place the sum right underneath 3.\r \n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Multiply -3 by 4 and place the product (which is -12) right underneath the fourth coefficient (which is 12)\r \n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Add -12 and 12 to get 0. Place the sum right underneath -12.\r \n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Since the last column adds to zero, we have a remainder of zero. This means \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now lets look at the bottom row of coefficients:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The first 3 coefficients (1,-1,4) form the quotient\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You can use this online polynomial division calculator to check your work\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |