document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=119008>Question 119008</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve using synthetic division\r<BR>\n" );
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document.write( "(2x²+3x-20)÷(x-2) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #87121 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=87121\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Let's simplify this expression using synthetic division\r<BR>\n" );
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document.write( "Start with the given expression <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x%5E2+%2B+3x+-+20%29%2F%28x-2%29 ALIGN=MIDDLE  ALT=\"%282x%5E2+%2B+3x+-+20%29%2F%28x-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "First lets find our test zero:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-2=0 ALIGN=MIDDLE  ALT=\"x-2=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > Set the denominator <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-2 ALIGN=MIDDLE  ALT=\"x-2\"   DISABLED_style= \"max-width:90%; height:auto;\" > equal to zero\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=2 ALIGN=MIDDLE  ALT=\"x=2\"   DISABLED_style= \"max-width:90%; height:auto;\" > Solve for x.\r<BR>\n" );
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document.write( "so our test zero is 2\r<BR>\n" );
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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.<TABLE  cellpadding=10>\n" );
document.write( "<TR><TD >2</TD><TD >|</TD><TD >2</TD><TD >3</TD><TD >-20</TD></TR><TR><TD ></TD><TD >|</TD><TD ></TD><TD ></TD><TD ></TD><TD ></TD></TR><TR><TD ></TD><TD ></TD><TD ></TD><TD ></TD><TD ></TD></TR>\n" );
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document.write( "Start by bringing down the leading coefficient (it is the coefficient with the highest exponent which is 2)\r<BR>\n" );
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document.write( "<TR><TD >2</TD><TD >|</TD><TD >2</TD><TD >3</TD><TD >-20</TD></TR><TR><TD ></TD><TD >|</TD><TD ></TD><TD ></TD><TD ></TD><TD ></TD></TR><TR><TD ></TD><TD ></TD><TD >2</TD><TD ></TD><TD ></TD></TR>\n" );
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document.write( "    Multiply 2 by 2 and place the product (which is 4)  right underneath the second  coefficient (which is 3)\r<BR>\n" );
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document.write( "<TR><TD >2</TD><TD >|</TD><TD >2</TD><TD >3</TD><TD >-20</TD></TR><TR><TD ></TD><TD >|</TD><TD ></TD><TD >4</TD><TD ></TD><TD ></TD></TR><TR><TD ></TD><TD ></TD><TD >2</TD><TD ></TD><TD ></TD></TR>\n" );
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document.write( "    Add 4 and 3 to get 7. Place the sum right underneath 4.\r<BR>\n" );
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document.write( "<TR><TD >2</TD><TD >|</TD><TD >2</TD><TD >3</TD><TD >-20</TD></TR><TR><TD ></TD><TD >|</TD><TD ></TD><TD >4</TD><TD ></TD><TD ></TD></TR><TR><TD ></TD><TD ></TD><TD >2</TD><TD >7</TD><TD ></TD></TR>\n" );
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document.write( "    Multiply 2 by 7 and place the product (which is 14)  right underneath the third  coefficient (which is -20)\r<BR>\n" );
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document.write( "<TR><TD >2</TD><TD >|</TD><TD >2</TD><TD >3</TD><TD >-20</TD></TR><TR><TD ></TD><TD >|</TD><TD ></TD><TD >4</TD><TD >14</TD><TD ></TD></TR><TR><TD ></TD><TD ></TD><TD >2</TD><TD >7</TD><TD ></TD></TR>\n" );
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document.write( "    Add 14 and -20 to get -6. Place the sum right underneath 14.\r<BR>\n" );
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document.write( "<TR><TD >2</TD><TD >|</TD><TD >2</TD><TD >3</TD><TD >-20</TD></TR><TR><TD ></TD><TD >|</TD><TD ></TD><TD >4</TD><TD >14</TD><TD ></TD></TR><TR><TD ></TD><TD ></TD><TD >2</TD><TD >7</TD><TD >-6</TD></TR>\n" );
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document.write( "Since the last column adds to -6, we have a remainder of -6. This means <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-2 ALIGN=MIDDLE  ALT=\"x-2\"   DISABLED_style= \"max-width:90%; height:auto;\" > is <b>not</b> a factor of  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%5E2+%2B+3x+-+20 ALIGN=MIDDLE  ALT=\"2x%5E2+%2B+3x+-+20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now lets look at the bottom row of coefficients:\r<BR>\n" );
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document.write( "The first 2 coefficients (2,7) form the quotient\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x+%2B+7 ALIGN=MIDDLE  ALT=\"2x+%2B+7\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and the last coefficient -6, is the remainder, which is placed over <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-2 ALIGN=MIDDLE  ALT=\"x-2\"   DISABLED_style= \"max-width:90%; height:auto;\" > like this\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-6%2F%28x-2%29 ALIGN=MIDDLE  ALT=\"-6%2F%28x-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Putting this altogether, we get:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x+%2B+7%2B-6%2F%28x-2%29 ALIGN=MIDDLE  ALT=\"2x+%2B+7%2B-6%2F%28x-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x%5E2+%2B+3x+-+20%29%2F%28x-2%29=2x+%2B+7%2B-6%2F%28x-2%29 ALIGN=MIDDLE  ALT=\"%282x%5E2+%2B+3x+-+20%29%2F%28x-2%29=2x+%2B+7%2B-6%2F%28x-2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "which looks like this in remainder form:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%282x%5E2+%2B+3x+-+20%29%2F%28x-2%29=2x+%2B+7 ALIGN=MIDDLE  ALT=\"%282x%5E2+%2B+3x+-+20%29%2F%28x-2%29=2x+%2B+7\"   DISABLED_style= \"max-width:90%; height:auto;\" > remainder -6\r<BR>\n" );
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document.write( "You can use this <a  rel=nofollow HREF=http://calc101.com/webMathematica/long-divide.jsp>online polynomial division calculator</a> to check your work\r<BR>\n" );
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document.write( " </SPAN>\n" );
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