document.write( "Question 30765: Solve the quadratic equation by using the quadratic formula.
\n" ); document.write( "This is what I get:
\n" ); document.write( "2x^2+4x=-1
\n" ); document.write( "2x^+4x+1=0
\n" ); document.write( "x=[-(4)+or- sqrt(4)^2-4(2)(1)]/[2(2)]
\n" ); document.write( "x=[-4+or-sqrt16-8]/4
\n" ); document.write( "x=[-4+or-sqrt8]/4
\n" ); document.write( "my answer x=[-4+or-2sqt2]/4
\n" ); document.write( "my bookk says its:
\n" ); document.write( " x=[-2+or-sqrt2]/2
\n" ); document.write( "How do they get there? \n" ); document.write( "
Algebra.Com's Answer #17499 by mbarugel(146)\"\" \"About 
You can put this solution on YOUR website!
You actually got the correct solution, and it's the same as the book's.\r
\n" ); document.write( "\n" ); document.write( "You have:\r
\n" ); document.write( "\n" ); document.write( "\"%28-4%2B2sqrt%282%29%29%2F4\"\r
\n" ); document.write( "\n" ); document.write( "But you can divide both the numerator and the denominator by 2:\r
\n" ); document.write( "\n" ); document.write( "\"%28-4%2F2+%2B+2%2F2sqrt%282%29%29%2F%284%2F2%29+=+%28-2+%2B+sqrt%282%29%29%2F2\"\r
\n" ); document.write( "\n" ); document.write( "which is the solution your book gives. You had found the correct answer :)\r
\n" ); document.write( "\n" ); document.write( "I hope this helps!
\n" ); document.write( "Get more answers at Online Math Answers.com!\r
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