document.write( "Question 924719: what is the value of the expression of 2x squared plus 3xy minus -4y2 when x = 2 and y =4 ? how can i solve this can you break it down for me \n" ); document.write( "

Algebra.Com's Answer #561042 by srinivas.g(540) $\"\"$ $\"About$

You can put this solution on YOUR website!
give expression : $\"+2x%5E2%2B3xy-4y%5E2\"$
\n" ); document.write( "put x=2 & y=4 in above expression
\n" ); document.write( " $\"2x%5E2%2B3xy-4y%5E2\"$ = $\"+2%2A%282%29%5E2%2B3%2A2%2A4-4%2A4%5E2\"$
\n" ); document.write( " = $\"+2%2A4%2B24-4%2A16\"$
\n" ); document.write( " = $\"8%2B24-64\"$
\n" ); document.write( " = $\"32-64\"$
\n" ); document.write( " = -32
\n" ); document.write( "result is -32 \n" ); document.write( "

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