document.write( "Question 760004: the difference between the square of a number and twice the number is equal to 8. find both numbers that satisfy the condition above? \n" ); document.write( "
Algebra.Com's Answer #462337 by sachi(548) You can put this solution on YOUR website! the difference between the square of a number and twice the number = 8. \n" ); document.write( "so n^2-2n=8 \n" ); document.write( "or n^2-2n-8=0 \n" ); document.write( "or n=[2+/-sqrt(2^2-4*1*-8)]/2*1=[2+/-sqrt(4+32)]/2=[2+/-sqrt(36)]/2 \n" ); document.write( "=[2+/-6]/2=[8 or -4}/2= 4 or -2 \n" ); document.write( " both numbers that satisfy the condition above are 4 or -2 \n" ); document.write( " |