document.write( "Question 970339: If $\"+2x%5E2%2B6x%2Bc=0+\"$ has exactly one solution, what is the value of c? \n" ); document.write( "

Algebra.Com's Answer #592983 by rothauserc(4718) $\"\"$ $\"About$

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2x^2 + 6x + C = 0
\n" ); document.write( "divide both sides of = by 2
\n" ); document.write( "x^2 + 3x + C/2 = 0
\n" ); document.write( "(x + 1.5) * (x + 1.5) = 0
\n" ); document.write( "therefore
\n" ); document.write( "2.25 = C/2 and
\n" ); document.write( "C = 4.50\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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