Question

Tomas learned that the product of the polynomials (a+b)(a^2-ab+b^2) was a special pattern that would result in a sum of cubes, a^3+b^3. His teacher was put four products on the board and asked the class to identify which product would result in a sum of cubes if a=2x and b=y

Answer 1

(2x+y)(4x²-2xy+y²)

Just replace a with 2x and b with y