document.write( "Question 1096572: Find one value of k for which the given equation has equal roots: 4x^2+2kx+9=0 \n" ); document.write( "
Algebra.Com's Answer #711009 by Alan3354(69443)\"\" \"About 
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Find one value of k for which the given equation has equal roots: 4x^2+2kx+9=0
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\n" ); document.write( "--> Discriminant = 0
\n" ); document.write( "(2k)^2 - 4*4*9 = 0
\n" ); document.write( "4k^2 = 144
\n" ); document.write( "k^2 = 36
\n" ); document.write( "k = +/- 6
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