X = 2/3, -2/3
“Solve” : (9x^2+4)•(3x+2)•(3x-2)
Answer:
Length=10 Inches
Width=10 Inches
Step-by-step explanation:
Volume of the box 
Height=8 Inches
Base Perimeter =40 Inches
Volume of a box=lbh
SInce h=8 in, V=800.
Then:
8bl=800
bl=100

Base Perimeter=40 Inches
Perimeter of the Base= 2(l+b)
Therefore: 2(l+b)=40
Substituting 

Recall:

Therefore:
Length=10 Inches
Width=10 Inches
Answer:A 12/13
Step-by-step explanation:
Step-by-step explanation:
Please see the photo for the method