document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=98785>Question 98785</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the equation for x\r<BR>\n" );
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document.write( "x^2+4x+4=7 </SPAN>\n" );
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document.write( "     solve the equation for x\r<BR>\n" );
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document.write( "x^2+4x+4=7\r<BR>\n" );
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document.write( "     x^2+4x+4-7 =0\r<BR>\n" );
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document.write( "     x^2+4x-3 = 0  compare with the std form we get a= 1 ,b = 4 and c= -3\r<BR>\n" );
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document.write( " use the formula<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
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document.write( "        x = -4 +- sq.rt (4^2+12)/2\r<BR>\n" );
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document.write( "          = -4+-sq.rt28/2<BR>\n" );
document.write( "          = -4+-2 sq.rt 7/2<BR>\n" );
document.write( "          = 2(-2+-sq.rt 7)/2<BR>\n" );
document.write( "        x = -2+-sq.rt 7 </SPAN>\n" );
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