Question

Factor completely x2 − 10x + 25.

(x − 5)(x − 5)
(x + 5)(x + 5)
(x + 5)(x − 5)
(x − 25)(x − 1)

Answer 1

Here, we know, (a - b)² = a² - 2ab + b² = (a - b)(a + b)
Here, a = √x² = x
b = √25 = 5

In short, Your Answer would be: (x + 5)(x - 5) [ Option C ]

Hope this helps!