The Purplemath Forums

havin trouble with this problem... the volume of the larger rectangular box is three times the volume of the smaller rectangular box what is the value of x?

the sides of the large box are as follows l= x=2, w= x=1 h=x all three sides of the small box are x how would i go about solving this? thank you

sorry l=x+1 w=x h=X+2

so i get
3x=(x)(x+2)(x+1)
so 3x= x^2+2x^2+2x and im stuck

I dont fully understand would you mind giving me a run down on how to do this type of problem i have to do a bunch of them and am compleatly lost