document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1123105>Question 1123105</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a number is subtracted from 43,the principal square root of this difference is equal to the number decreased by 1, Find the number.\r<BR>\n" );
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document.write( "A) {-6}<BR>\n" );
document.write( "B) {6,-7}<BR>\n" );
document.write( "c) {7}<BR>\n" );
document.write( "D) {-6,7} </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #739332 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=739332\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2843+-+x%29+=+x+-+1+ ALIGN=MIDDLE  ALT=\"sqrt%2843+-+x%29+=+x+-+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28sqrt%2843+-+x%29%29%5E2+=+%28x+-+1%29%5E2+ ALIGN=MIDDLE  ALT=\"%28sqrt%2843+-+x%29%29%5E2+=+%28x+-+1%29%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=43+-+x+=+x%5E2+-2x%2B1+ ALIGN=MIDDLE  ALT=\"43+-+x+=+x%5E2+-2x%2B1+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0+=+x%5E2%2Bx+-2x%2B1-43+ ALIGN=MIDDLE  ALT=\"0+=+x%5E2%2Bx+-2x%2B1-43+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x%5E2+-x-42=0+ ALIGN=MIDDLE  ALT=\"+x%5E2+-x-42=0+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x%5E2%2B6x+-7x-42=0+ ALIGN=MIDDLE  ALT=\"+x%5E2%2B6x+-7x-42=0+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28x%5E2%2B6x+%29-%287x%2B42%29=0+ ALIGN=MIDDLE  ALT=\"+%28x%5E2%2B6x+%29-%287x%2B42%29=0+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x%28x%2B6+%29-7%28x%2B6%29=0+ ALIGN=MIDDLE  ALT=\"+x%28x%2B6+%29-7%28x%2B6%29=0+\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x+-+7%29+%28x+%2B+6%29+=+0 ALIGN=MIDDLE  ALT=\"%28x+-+7%29+%28x+%2B+6%29+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "solutions:\r<BR>\n" );
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document.write( "if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+-+7+=+0 ALIGN=MIDDLE  ALT=\"x+-+7+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > =><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=7 ALIGN=MIDDLE  ALT=\"x=7\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+%2B+6+=+0 ALIGN=MIDDLE  ALT=\"+x+%2B+6+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" > =><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-6 ALIGN=MIDDLE  ALT=\"x=-6\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=7 ALIGN=MIDDLE  ALT=\"x=7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2843+-+7%29+=+7-+1+ ALIGN=MIDDLE  ALT=\"sqrt%2843+-+7%29+=+7-+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" >=><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2836%29+=+6+ ALIGN=MIDDLE  ALT=\"sqrt%2836%29+=+6+\"   DISABLED_style= \"max-width:90%; height:auto;\" >=><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6+=+6+ ALIGN=MIDDLE  ALT=\"6+=+6+\"   DISABLED_style= \"max-width:90%; height:auto;\" > which is true\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=-6 ALIGN=MIDDLE  ALT=\"x=-6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2843+-+%28-6%29%29+=-6-+1+ ALIGN=MIDDLE  ALT=\"sqrt%2843+-+%28-6%29%29+=-6-+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" >=><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%2849%29+=+-7+ ALIGN=MIDDLE  ALT=\"sqrt%2849%29+=+-7+\"   DISABLED_style= \"max-width:90%; height:auto;\" >=><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7+=+-7+ ALIGN=MIDDLE  ALT=\"7+=+-7+\"   DISABLED_style= \"max-width:90%; height:auto;\" > which is not true\r<BR>\n" );
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document.write( "so, your answer is C) {7}\r<BR>\n" );
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document.write( " </SPAN>\n" );
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