Which of the following results in the difference of two squares? a. (4x-5y)(4x+5y)
b. (5x+3y)(5x+3y)
c. (2x-3y)^2
d. 4x^2(3x-9)

The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?

Pls , the question is in the picture!

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be