document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=300155>Question 300155</A>: <I><SPAN STYLE=\"word-break: break-all;\"> i don't understand some of the quadratic equation steps, like:<BR>\n" );
document.write( "* when to use the two different equations.<BR>\n" );
document.write( "*when do i know that there are no solutions<BR>\n" );
document.write( "*if i got a fraction for x do i turn it into a decimal? <BR>\n" );
document.write( "*if i don't have to turn it into decimal is there a chance that i  can get a real big number? how can i work that out?<BR>\n" );
document.write( "*when i use the long equation(the one with the square root on it) im looking for the vertex in the parabola or what.. i don't understand?\r<BR>\n" );
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document.write( "Please help me im doing kind of bad in Algebra because i don't understand this quadratic equations\r<BR>\n" );
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document.write( "Maria Rivera </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #215434 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=215434\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "I like your questions\r<BR>\n" );
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document.write( "I hope I understand your questions<BR>\n" );
document.write( "For every unknown (a different letter), you need another equation.<BR>\n" );
document.write( "Let's say you just have x then you only need one equation .<BR>\n" );
document.write( "If you have x and y then you need two equations <BR>\n" );
document.write( "If you have x, y, and z then you need three equations.\r<BR>\n" );
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document.write( "Do you mean when are there no real solutions or no solutions?<BR>\n" );
document.write( "There are always solutions to a quadratic equation.<BR>\n" );
document.write( "The determinant (b^2-4ac) will tell you what type (real, imaginary, rational, irrational) and how many there are.\r<BR>\n" );
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document.write( "Answers can be left in fraction form. They are more exact than the decimal form.<BR>\n" );
document.write( "Sometimes the teacher will want an answer in decimal form rounded to one or two places because there are roots with radicals etc.\r<BR>\n" );
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document.write( "What do you mean by  a really big number? And what is wrong with really big numbers? Wouldn't you like a really big number of dollars?\r<BR>\n" );
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document.write( "The vertex will have an x and a y in the point such as (3,4)<BR>\n" );
document.write( "the 3 is the x and the 4 is the y<BR>\n" );
document.write( "-b/2a is the x value of the vertex when the equation is in the form ax^2+bx+c=0 or ax^2+bx=c<BR>\n" );
document.write( "then plug in that value of x to find the y of the point y=ax^2+bx+c or \r<BR>\n" );
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