document.write( "Question 580103: I know this is pretty simple, but I can't seem to come up with the same answer that is given:
\n" ); document.write( "'if x=-1 and y=2, what is the value of the expression 2x to the third power-3xy?
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Algebra.Com's Answer #371206 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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if x=-1 and y=2, what is the value of the expression 2x^3 - 3xy
\n" ); document.write( "Substitute -1 for x and 2 for y
\n" ); document.write( "2(-1^3) - (3*-1*2)
\n" ); document.write( "2(-1) - (-6)
\n" ); document.write( "-2 + 6 = +4 \n" ); document.write( "

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