document.write( "Question 853017: I need help. (-9x^2-10y)^2 \n" ); document.write( "
Algebra.Com's Answer #513834 by richwmiller(17219) 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 \n" ); document.write( " |