document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=77196>Question 77196</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0201719665/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+sqrt+%2850+%2B+7k%29+ ALIGN=MIDDLE  ALT=\"+sqrt+%2850+%2B+7k%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = (k + 8)\r<BR>\n" );
document.write( "\n" );
document.write( "I am supposed to figure out what the variable is. So far, I have squared both sides so the \"50 + 7k\" is no longer a square root. and the k is squared and 8 is now 64. From there, I subtracted 50 from both sides, but then I got to a place where I had to find the square root of \"7k\" and then i got totally lost. Would you be able to help me? Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #55312 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><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=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=55312\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28+sqrt%2850%2B7k%29+%29 ALIGN=MIDDLE  ALT=\"%28+sqrt%2850%2B7k%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B8%29 ALIGN=MIDDLE  ALT=\"%28x%2B8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28+%28sqrt%2850%2B7k%29%29%5E2+%29 ALIGN=MIDDLE  ALT=\"%28+%28sqrt%2850%2B7k%29%29%5E2+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B8%29%5E2 ALIGN=MIDDLE  ALT=\"%28x%2B8%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >  [square both sides]<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28+%2850%2B7k%29+%29 ALIGN=MIDDLE  ALT=\"%28+%2850%2B7k%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28k%2B8%29%28k%2B8%29 ALIGN=MIDDLE  ALT=\"%28k%2B8%29%28k%2B8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28+%2850%2B7k%29+%29 ALIGN=MIDDLE  ALT=\"%28+%2850%2B7k%29+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28k%5E2%2B16k%2B64%29%29 ALIGN=MIDDLE  ALT=\"%28k%5E2%2B16k%2B64%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28+0%29 ALIGN=MIDDLE  ALT=\"%28+0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28k%5E2%2B16k-7k%2B64-50%29%29 ALIGN=MIDDLE  ALT=\"%28k%5E2%2B16k-7k%2B64-50%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28+0%29 ALIGN=MIDDLE  ALT=\"%28+0%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28k%5E2%2B9k%2B14%29%29 ALIGN=MIDDLE  ALT=\"%28k%5E2%2B9k%2B14%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "0=(k+7)(k+2)<BR>\n" );
document.write( "k+7=0<BR>\n" );
document.write( "k=-7<BR>\n" );
document.write( "or<BR>\n" );
document.write( "k+2=0<BR>\n" );
document.write( "k=-2<BR>\n" );
document.write( ".<BR>\n" );
document.write( "check by plugging k=-7 and k=-2 back into the orignal equation and solve for each value. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );