document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=130618>Question 130618</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0131808583/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this equation: melinda's dad is 30 years older than melinda is now. eight years ago, his age was equal to the square of melinda's age then. how old is melinda now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #95446 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=95446\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=Melinda's age now;  x-8=Melinda's age 8 years ago\r<BR>\n" );
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document.write( "Then x+30=Melinda's dad's age now; x+30-8=x+22=dad's age 8 years ago\r<BR>\n" );
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document.write( "Now we are told that:\r<BR>\n" );
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document.write( "x+22=(x-8)^2  get rid of parens\r<BR>\n" );
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document.write( "x+22=x^2-16x+64  subtract x and also 22 from each side\r<BR>\n" );
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document.write( "x-x+22-22=x^2-16x-x+64-22  collect like terms\r<BR>\n" );
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document.write( "x^2-17x+42=0--------------------quadratic in standard form and it can be factored\r<BR>\n" );
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document.write( "(x-3)(x-14)=0\r<BR>\n" );
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document.write( "x=3 years old (NO GOOD!!! 8 YEARS AGO SHE WOULD BE -5????)<BR>\n" );
document.write( "and x=14 years old-----------------Melinda's age now\r<BR>\n" );
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document.write( "x+30=14+30=44 years old her dad's age now\r<BR>\n" );
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document.write( "CK\r<BR>\n" );
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document.write( "8 years ago dad's age was equal to the square of Melinda's--<BR>\n" );
document.write( "44-8=(14-8)^2\r<BR>\n" );
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document.write( "36=6^2<BR>\n" );
document.write( "36=36\r<BR>\n" );
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document.write( "Hope this helps---ptaylor\r<BR>\n" );
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document.write( " </SPAN>\n" );
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