document.write( "Question 153512: 1/3x^2-3x+14 2/3=2x \n" ); document.write( "
Algebra.Com's Answer #113503 by orca(409)\"\" \"About 
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First we need to change the equation into the standard form.\r
\n" ); document.write( "\n" ); document.write( "\"%281%2F3%29x%5E2-3x%2B14%2B2%2F3=2x\"
\n" ); document.write( "\"%281%2F3%29x%5E2-3x%2B44%2F3=2x\"
\n" ); document.write( "\"3%28%281%2F3%29x%5E2-3x%2B44%2F3%29=3%2A2x\" (multiply both sides by 3)
\n" ); document.write( "\"x%5E2-9x%2B44=6x\"
\n" ); document.write( "\"x%5E2-15x%2B44=0\"
\n" ); document.write( "*************************************************************
\n" ); document.write( "SOLVED BY FACTORING
\n" ); document.write( "The left side of the equation can be factored as \"x%5E2-15x%2B44=%28x-4%29%28x-11%29\".
\n" ); document.write( "So the equation becomes:
\n" ); document.write( "\"%28x-4%29%28x-11%29=0\"
\n" ); document.write( "so x= 4 or x = 11
\n" ); document.write( "SOLVED BY USING QUADRATIC FORMULA
\n" ); document.write( "Substituting
\n" ); document.write( "a = 1
\n" ); document.write( "b = -15
\n" ); document.write( "c = 44
\n" ); document.write( "into
\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\", we have
\n" ); document.write( "\"x+=+%28-%28-15%29+%2B-+sqrt%28+%28-15%29%5E2-4%2A1%2A44+%29%29%2F%282%2A1%29+\"
\n" ); document.write( "\"x+=+%2815+%2B-+sqrt%28+225-176+%29%29%2F2+\"
\n" ); document.write( "\"x+=+%2815+%2B-+sqrt%28+49+%29%29%2F2+\"
\n" ); document.write( "\"x+=+%2815+%2B-+7%29%2F2+\"
\n" ); document.write( "So
\n" ); document.write( "\"x+=+%2815+%2B+7%29%2F2+=22%2F2+=+11\"
\n" ); document.write( "Or
\n" ); document.write( "\"x+=+%2815+-+7%29%2F2+=8%2F2+=+4\"\r
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