document.write( "Question 124344: directions: use quadratic equation x=-b+(rad)(b^2-4ac)/2a to find theroots of the equation x^2-3x+2=0.(the plus sign by the b has a line under it). i can have one of four answers. A)2 B)2,1 C)-1,-2 D)1,1 1/2. which one is correct? \n" ); document.write( "

Algebra.Com's Answer #91329 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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directions: use quadratic equation x=-b+(rad)(b^2-4ac)/2a to find theroots of the equation x^2-3x+2=0
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\n" ); document.write( "The quadratic equation:
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "In your problem a=1; b=-3; c=2
\n" ); document.write( " $\"x+=+%28-%28-3%29+%2B-+sqrt%28-3%5E2+-+4+%2A+1+%2A+2+%29%29%2F%282%2A1%29+\"$
\n" ); document.write( ";
\n" ); document.write( " $\"x+=+%283+%2B+sqrt%289+-+8+%29%29%2F2+\"$
\n" ); document.write( " $\"x+=+%283+%2B+sqrt%281%29%29%2F2\"$
\n" ); document.write( " $\"x+=+%283+%2B+1%29%2F2\"$
\n" ); document.write( " $\"x+=+4%2F2\"$
\n" ); document.write( "x = 2
\n" ); document.write( "and
\n" ); document.write( " $\"x+=+%283+-+sqrt%289+-+8+%29%29%2F%282%29+\"$
\n" ); document.write( " $\"x+=+%283+-+sqrt%281%29%29%2F2\"$
\n" ); document.write( " $\"x+=+%283+-+1%29%2F2\"$
\n" ); document.write( " $\"x+=+2%2F2\"$
\n" ); document.write( "x = 1
\n" ); document.write( ":
\n" ); document.write( "The solutions are x = 2 and x = 1
\n" ); document.write( "I am sorry, I should not have assumed it was easy for you. \n" ); document.write( "

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