Question

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

A. (7x + 5)(7x + 5)
B. (7x + 5)(7x − 5)
C. (7x − 5)(7x − 5)
D. Not a difference of squares because −25 is not a perfect square.

Answer 1

the asnwer is not D because 25 is a perfect square.
it can't be A or C becsuse when you factor the difference of two squares you get this form (a-b)(a+b).
two different signs.

hope it helped.

short answer : B.

Answer 2

(7x+5)(7x-5)
I think so
Good luck