Can you expand and simplify (x+4) (x-2) ?

Volume of cylinder with a radius of 8cm and height of 25 cm

What are “like terms”? why can we only add like terms?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm