document.write( "Question 119345: If you could please help me on the steps when using the quadratic equation?
\n" ); document.write( "I can identify the A,B and C variables and know the formula. And yet I can never seem to get the right solution. Can you break it down a bit for me? The site helps but it leaves me stuck as soon as I put in the variables. I think the problem is Im unsure how to solve what is going to be squared. If you have absolutely no idea what I'm saying I understand, I am bad at explaining things and would try again. Thank you for your help at any rate.
\n" ); document.write( "~S \n" ); document.write( "

Algebra.Com's Answer #87436 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "It does seem a little ominous.
\n" ); document.write( "Break it down into smaller steps.
\n" ); document.write( "First
\n" ); document.write( " $\"b%5E2\"$
\n" ); document.write( "Then
\n" ); document.write( " $\"4%2Aa%2Ac\"$
\n" ); document.write( "That's were you have to watch your positive and negative signs.
\n" ); document.write( "Then subtract those two.
\n" ); document.write( " $\"b%5E2-4ac\"$
\n" ); document.write( "In mathematics, that term is called the discriminant.
\n" ); document.write( "Let's call it D.
\n" ); document.write( " $\"D=b%5E2-4ac\"$
\n" ); document.write( "Take the square root of D and the rest is just addition and division.
\n" ); document.write( " $\"x=%28-b+%2B-+sqrt%28D%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "Practice, practice, practice.
\n" ); document.write( "Start with the answer, work backwards, and see where you run into problems.
\n" ); document.write( " $\"%28x%2B5%29%28x-3%29+=+x%2Ax-3x%2B5x-3%2A5\"$
\n" ); document.write( " $\"%28x%2B5%29%28x-3%29+=+x%5E2%2B2x-15\"$
\n" ); document.write( "The answers should be x=-5,3.
\n" ); document.write( " $\"%28x%2B5%29%28x-3%29+=+x%5E2%2B2x-15\"$
\n" ); document.write( " $\"b%5E2=4\"$
\n" ); document.write( " $\"4ac=4%281%29%28-15%29=-60\"$
\n" ); document.write( " $\"D=b%5E2-4ac=4-%28-60%29=64\"$
\n" ); document.write( " $\"sqrt%28D%29=sqrt%2864%29=8\"$
\n" ); document.write( " $\"x=%28-b+%2B-+sqrt%28D%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( " $\"x=%28-2+%2B-+8%29%2F%282%2A1%29+\"$
\n" ); document.write( " $\"x%5B1%5D=%28-2+%2B+8%29%2F%282%29+\"$
\n" ); document.write( " $\"x%5B1%5D=%286%29%2F%282%29+\"$
\n" ); document.write( " $\"x%5B1%5D=3+\"$
\n" ); document.write( " $\"x%5B2%5D=%28-2+-+8%29%2F%282%29+\"$
\n" ); document.write( " $\"x%5B2%5D=%28-10%29%2F%282%29+\"$
\n" ); document.write( " $\"x%5B2%5D=-5+\"$
\n" ); document.write( "If you find you're making mistakes in the same place, pay more attention in that area until you're more comfortable doing it.
\n" ); document.write( "Good luck. \n" ); document.write( "

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