Question

Determine whether the polynomial is a difference of squares and if it is, factor it.

Answer 1

The answer is C
    y² - 25
= y² - 5²
 =  (y + 5)(y - 5) which is a difference of two squares

Answer 2

Answer:

Option: C is the correct answer.

C.   Is a difference of squares: (y + 5)(y − 5).

Step-by-step explanation:

We are given a polynomial expression in terms of the variable y as follows:

                        $y^2-25$

Now this expression could also be written as:

$y^2-25=y^2-5^2$

This means that the expression is a difference of squares.

Also, we know that:

$a^2-b^2=(a+b)(a-b)$

Here,

$a=y\ and\ b=5$

Hence,

$y^2-25=(y+5)(y-5)$