Question

Determine whether 25a^2 − 49b^6 is a difference of two squares. If so, factor it. If not, explain why.

A. (5a + 7b^3)(5a − 7b^3)
B.(5a − 7b^3)(5a − 7b^3)
C. (5a − 7b^6)(5a + 7b^6)
D. It is not a difference of squares because −49b^6 is not a perfect square.

Answer 1

It is the difference of 2 squares as its of the form a^2 - b^2

A is the correct answer.