document.write( "Question 853017: I need help. (-9x^2-10y)^2 \n" ); document.write( "
Algebra.Com's Answer #513834 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
What is your problem?
\n" ); document.write( "BTW Lovely expression that you have there!
\n" ); document.write( "(-9x^2-10y)*(-9x^2-10y)
\n" ); document.write( "USE FOIL
\n" ); document.write( "First Outer Inner Last
\n" ); document.write( "(-9x^2)*(-9x^2)=81x^4
\n" ); document.write( "(-9x^2)*(-10y)=90x^2y
\n" ); document.write( "(-10y)*(-9x^2)=90x^2y
\n" ); document.write( "(-10y)*(-10y)=100y^2\r
\n" ); document.write( "\n" ); document.write( "add them
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