Question

How do you solve this? HELPPPPPPPPPPPPPP TYSMMM

Answer 1

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