document.write( "Question 1183866: If a, b, and c are positive constants, prove that \"ax+%2B+b%2Fx+%3E=+c\" for all positive values of x when \"4ab+%3E=+c%5E2\". \n" ); document.write( "
Algebra.Com's Answer #814423 by Edwin McCravy(20065)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "I agree with everything robertb said, except \r\n" );
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document.write( "\"tangent to the x-axis\"\r\n" );
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document.write( "It isn't tangent to the x-axis.  It is ABOVE the x axis, tho.\r\n" );
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document.write( "Substitute a=b=c=1 and x2-x+1 ≥ 0.  That quadratic is\r\n" );
document.write( "ABOVE, but not tangent to, the x-axis.\r\n" );
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document.write( "Edwin
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