document.write( "Question 28263: 3u^2+40=4 \n" ); document.write( "

Algebra.Com's Answer #25180 by tran3209(100) $\"\"$ $\"About$

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3U^2+40=4
\n" ); document.write( "3U^2=4-40
\n" ); document.write( "3U^2=-36
\n" ); document.write( "U^2= -36/3
\n" ); document.write( "U^2= -12 0r U^2 = 12x(-1) replace -1 by i^2
\n" ); document.write( "U^2= 12i^2
\n" ); document.write( "U= + and - square root of 12i^2
\n" ); document.write( "The answers are:
\n" ); document.write( "u= +2i √3
\n" ); document.write( "u= -2i √3
\n" ); document.write( " \n" ); document.write( "

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