document.write( "Question 56547: 3x-4y2 when x=-2 and y=4 \n" ); document.write( "
Algebra.Com's Answer #38381 by tutorcecilia(2152)\"\" \"About 
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3x-4y2 [Substitute -2 for x and substitute 4 for y]
\n" ); document.write( "3x-4y^2
\n" ); document.write( "3(-2)-4(4)^2
\n" ); document.write( "-6-4(16)
\n" ); document.write( "-6-64
\n" ); document.write( "-70\r
\n" ); document.write( "\n" ); document.write( "
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