document.write( "Question 384812: for the equation 25x^2 - kx = -4, find k so that the equation has exactly one rational root. \n" ); document.write( "
Algebra.Com's Answer #272394 by scott8148(6628)\"\" \"About 
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25x^2 - kx + 4 = 0\r
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\n" ); document.write( "\n" ); document.write( "(5x - 2)^2 = 0\r
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\n" ); document.write( "\n" ); document.write( "use FOIL to find k
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