Question

a. Find the surface area of the cube.
b. Find the volume of the cube.
the cube is 4x-5 wide.

Answer 1

Let side of the cube 4x-5 = a

So Surface Area = 6a^2
==> 6(4x-5)^2
==> 6(16x^2 - 40x + 25)
==> 96x^2 - 240x + 150

And Volume = a^3
==> (4x - 5)^3
==> 64x^3 - 240x^2 + 225x - 125