document.write( "Question 287977: I am thinking of three consecutive numbers. If I multiply the first with the second and then subtract three times the third, the result is 57. What are the numbers? \n" ); document.write( "
Algebra.Com's Answer #208676 by Grinnell(63)![]() ![]() ![]() You can put this solution on YOUR website! OK look Big Mama says when dealing with consecutive numbers \n" ); document.write( "we can easily let x be the first, x+1 be the second and on down the line. \n" ); document.write( "so our numbers are going to be x, x+1 and x+2 Understand this. This is important!!!!!\r \n" ); document.write( "\n" ); document.write( "Now we just have to translate the English into math. \n" ); document.write( "x(x+1)-3(x+2)=57\r \n" ); document.write( "\n" ); document.write( "X^2+x-3x-6=57 \n" ); document.write( "x^2-2x=63 (stay with me here) \n" ); document.write( "x^2-2x-63=0 \n" ); document.write( "(x-9)(x+7)=0 \n" ); document.write( "We have two solutions namely 9 and -7 \n" ); document.write( "9,10 and 11 AND -7,-6 and -5 Now the' THREE' that win the trophy are probably the 9,10 and 11\r \n" ); document.write( "\n" ); document.write( "Look up the definition of 'consecutive' numbers. I will double check also. Both solutions are in ascending order!! You actually have two sets of answers! But go with the flow and give the 9,10 and 11. \n" ); document.write( "Tell me what you think!! \n" ); document.write( " |