120/5 = x-2(x+3) 24= x^2+x-6 subtract 24 on both sides this is so you know where the next stuff comes from A b c (1)x^2+(1)x-30 now its quadratic ( i prefer factoring but you can apply quadratic formula to it ) for factoring you multiply A by c and get -30 and see what multiplies to get -30 and adds to get 1 you get -5 and 6 you set that to x-5 and x+6 (this is only if A =1 ) you get x=5 and x=-6 due to the product property (x-5=0 and x+6=0 solve for x how i got it ) your answer can be negative so x is equal to 5 5*(5-2)*(5+3) 5*3* 8 L*W*H width is 3 Height is 8 awnser is 8 give brainliest plox
