document.write( "Question 408339: 4x(x-5)-5x(x-4)=-1 \n" ); document.write( "
Algebra.Com's Answer #287717 by clarkp(14) You can put this solution on YOUR website! 4x²- 20x-5x²+ 20 =-1 BY associative property \n" ); document.write( "-x²+0= -1 combine like terms \n" ); document.write( "-x²=-1 by identity property of addition \n" ); document.write( "x²=1 by inverse property of multiplication \n" ); document.write( "therefore x= -1 or x= 1 \n" ); document.write( " |