For a regular cube:
side length =![s[tex] volume = [tex]s^3](https://tex.z-dn.net/?f=s%5Btex%5D%20volume%20%3D%20%5Btex%5Ds%5E3)
This problem has a lot of distributing. I suggest you use a grid to make sure each term is distributed (see attached image on how to do this)
For our problem:
side length =
(use FOIL)
Multiplying 5a(25a²+40ab+16b²) =
Multiplying 4b(25a²+40ab+16b²) =
Combine like terms. (200a²b + 100a²b = 300a²b, 80ab² + 160ab² = 240ab²)
volume = s³ =
side length =
This problem has a lot of distributing. I suggest you use a grid to make sure each term is distributed (see attached image on how to do this)
For our problem:
side length =
Multiplying 5a(25a²+40ab+16b²) =
Multiplying 4b(25a²+40ab+16b²) =
Combine like terms. (200a²b + 100a²b = 300a²b, 80ab² + 160ab² = 240ab²)
volume = s³ =