Question

Please help!!!!!!!!!!

Answer 1

b) (x+5)(x-5)

Explanation:

`x^(2)` - 25

=
`x^(2)` - 5x + 5x - 25 ( -5x and +5x gets cancelled to 0, but it is put here to simplify the equation)

= x ( x - 5 ) + 5 ( x - 5 )
= (x+5) (x-5)

Answer 2

Option B is correct since this is the algebraic identity, a^2 - b^2 = (a+b)(a-b). Here, the answer is (x+5)(x-5).