document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=587667>Question 587667</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could you please help? I am having trouble understanding these problems.\r<BR>\n" );
document.write( "\n" );
document.write( "1. The square root of y + 15 - the square root of y -15 = 1 solve for y.<BR>\n" );
document.write( "2. -2 and the square root of - 18.<BR>\n" );
document.write( "3. 2 - the square root of 6 divided by -7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #374184 by </B><A HREF=/tutors/aboutme.mpl?userid=dfrazzetto><B>dfrazzetto(283)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dfrazzetto><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=dfrazzetto><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=374184\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sqrt(y+15) - sqrt(y-15) = 1\r<BR>\n" );
document.write( "\n" );
document.write( "sqrt(y+15) = sqrt(y-15) + 1  \r<BR>\n" );
document.write( "\n" );
document.write( "square both sides:\r<BR>\n" );
document.write( "\n" );
document.write( "y+15 = y-15 + 2sqrt(y-15) + 1\r<BR>\n" );
document.write( "\n" );
document.write( "29 = 2sqrt(y-15)\r<BR>\n" );
document.write( "\n" );
document.write( "29/2 = sqrt(y-15)\r<BR>\n" );
document.write( "\n" );
document.write( "square both sides:\r<BR>\n" );
document.write( "\n" );
document.write( "841/4 = y-15\r<BR>\n" );
document.write( "\n" );
document.write( "y = 841/4 + 15 = 841/4 + 60/4 \r<BR>\n" );
document.write( "\n" );
document.write( "y = 901/4 = 225.25<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );