document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=463702>Question 463702</A>: <I><SPAN STYLE=\"word-break: break-all;\"> help?! please show all work so i know how to actually do these. <BR>\n" );
document.write( "solve for the unknown and check the work.\r<BR>\n" );
document.write( "\n" );
document.write( "1. 4&#8730;x=20<BR>\n" );
document.write( "2. &#8730;y+&#8730;y+7=7<BR>\n" );
document.write( "3. &#8730;x+11=&#8730;x+1\r<BR>\n" );
document.write( "\n" );
document.write( "if its confusing.. in number 2 the &#8730;y+7 is a square root<BR>\n" );
document.write( "and in number 3 the x+11 is one square root and x+1 is another one. just so you dont think that just the y is or just the x. (: </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #319031 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=319031\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. 4&#8730;x=20<BR>\n" );
document.write( "2. &#8730;y+&#8730;y+7=7<BR>\n" );
document.write( "3. &#8730;x+11=&#8730;x+1 <BR>\n" );
document.write( "if its confusing.. in number 2 the &#8730;y+7 is a square root<BR>\n" );
document.write( "and in number 3 the x+11 is one square root and x+1 is another one. just so you dont think that just the y is or just the x<BR>\n" );
document.write( "...<BR>\n" );
document.write( "1. 4&#8730;x=20<BR>\n" );
document.write( "divide by 4<BR>\n" );
document.write( "&#8730;x=5<BR>\n" );
document.write( "square both sides<BR>\n" );
document.write( "x=25<BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "4&#8730;25=4*5=20<BR>\n" );
document.write( "..<BR>\n" );
document.write( "2. &#8730;y+&#8730;(y+7)=7<BR>\n" );
document.write( "square both sides; ie,(a+b)^2=a^2+2ab+b^2<BR>\n" );
document.write( "y+2&#8730;y*&#8730;(y+7)+y+7=49<BR>\n" );
document.write( "y+2&#8730;(y(y+7))+y+7=49<BR>\n" );
document.write( "2&#8730;(y^2+7y)=49-7-2y<BR>\n" );
document.write( "2&#8730;(y^2+7y)=42-2y<BR>\n" );
document.write( "square both sides again<BR>\n" );
document.write( "4(y^2+7y)=1764-168y+4y^2<BR>\n" );
document.write( "4y^2+28y=1764-168y+4y^2<BR>\n" );
document.write( "196y=1764<BR>\n" );
document.write( "y=1764/196=9<BR>\n" );
document.write( "Check:<BR>\n" );
document.write( "&#8730;y+&#8730;(y+7)=7<BR>\n" );
document.write( "&#8730;9+&#8730;(9+7)=&#8730;9+&#8730;16=3+4=7<BR>\n" );
document.write( "..<BR>\n" );
document.write( "3. &#8730;(x+11)=&#8730;(x+1)<BR>\n" );
document.write( "square both sides<BR>\n" );
document.write( "x+11=x+1<BR>\n" );
document.write( "11&#8800;1<BR>\n" );
document.write( "no solution </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );