document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=547137>Question 547137</A>: <I><SPAN STYLE=\"word-break: break-all;\"> use the quadratic formula to solve the following equations\r<BR>\n" );
document.write( "\n" );
document.write( "(r-2)(r+6)=11\r<BR>\n" );
document.write( "\n" );
document.write( "simplify your answer. type an exact answer using radicals as needed. use integers or fractions for any numbers in the expression. use a comma to seperate answers as needed.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #356243 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=356243\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (r-2)(r+6)=11\r<BR>\n" );
document.write( "\n" );
document.write( "r(r+6)-2(r+6)+11=0\r<BR>\n" );
document.write( "\n" );
document.write( "r^2+6r-2r-12+11=0\r<BR>\n" );
document.write( "\n" );
document.write( "r^2+4r-1=0<BR>\n" );
document.write( "Find the roots of the equation by quadratic formula						<BR>\n" );
document.write( "						<BR>\n" );
document.write( "a=	1	,b=	4	,c=	-1	<BR>\n" );
document.write( "						<BR>\n" );
document.write( "b^2-4ac=	16	+	4			<BR>\n" );
document.write( "b^2-4ac=	20					<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >						<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29 ALIGN=MIDDLE  ALT=\"x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >						<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x1=%28-12%2B21%29%2F%282%29 ALIGN=MIDDLE  ALT=\"x1=%28-12%2B21%29%2F%282%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >						<BR>\n" );
document.write( "x1=(	-4	+	4.47	)/	2	<BR>\n" );
document.write( "x1=	0.24					<BR>\n" );
document.write( "x2=(	-4	-4.47	) /	2		<BR>\n" );
document.write( "x2= 	-4.24	<BR>\n" );
document.write( "you can also work it out in fractions<BR>\n" );
document.write( "				<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );