Question

Question:25y²-1
answer​

Answer 1

Below.

Explanation:

25y²-1

This is the difference of 2 squares and it factors to (5y - 1)(5y + 1).

Answer 2

(5y - 1)(5y + 1)

Explanation:

Assuming you require the expression to be factorised.

25y² - 1 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

25y² - 1

= (5y)² - 1²

= (5y - 1)(5y + 1)