Question

The expression x2 – 25 is equivalent to which of the following expressions

Answer 1

Answer:

x² - 25 = (x - 5)(x + 5)

Step-by-step explanation:

$x^2-25=x^2-5^2\qquad\text{use}\ (a-b)(a+b)=a^2-b^2\\\\=(x-5)(x+5)$