document.write( "Question 180002This question is from textbook
\n" ); document.write( ": I am having some trouble with quadratic formulas, can you help me please? Here is the problem: 4x^2-x+1=0 This is what I have so far: A=4 B=-1 C=1 X= 1+/-(radical sign)(-1)^2-4(4(1) (All over) 2(4) x=1+/-(radical sign)1-16 (all over) 8 x=1+/-(radical sign) -15 (all over) 8 x=1+/-(radical sign) -1(times)15 (all over) 8 x=1+/-i(racidal sign)15 (all over) 8 and that is as far as I got, Please help me! Thanks a ton,
\n" ); document.write( "Heather
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Algebra.Com's Answer #134884 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Let's see if your answer checks:
\n" ); document.write( "\"x+=+%281+%2B-sqrt%2815%29i%29%2F8\"
\n" ); document.write( "I'll plug 1 of these 2 answers back into the equation
\n" ); document.write( "\"4x%5E2+-+x+%2B+1+=+0\"
\n" ); document.write( "\"4%2A%28%281+%2B+sqrt%2815%29i%29%2F8%29%5E2+-+%281+%2B+sqrt%2815%29i%29%2F8+%2B+1+=+0\"
\n" ); document.write( "\"4%2A%281+%2B+2%2Asqrt%2815%29i+%2B+15%2Ai%5E2%29%2F64+-+1%2F8+-+sqrt%2815%29i%2F8+%2B+1+=+0\"
\n" ); document.write( "\"1%2F16+%2B+%28sqrt%2815%29i%29%2F8+-+15%2F16+-+1%2F8+-+sqrt%2815%29i%2F8+%2B+1+=+0\"
\n" ); document.write( "multiply both sides by \"16\"
\n" ); document.write( "\"1+%2B+2%2A%28sqrt%2815%29i%29+-+15+-+2+-+2%2A%28sqrt%2815%29i%29+%2B+16+=+0\"
\n" ); document.write( "\"1+-+15+-+2+%2B+16+=+0\"
\n" ); document.write( "\"17+-+17+=+0\"
\n" ); document.write( "The other root should check out, too. I'll let you do it.
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