Question

Factor 25-4z^2
im having trouble with a question

Answer 1

(5-2z)(5+2z)

Explanation:

25 -4z^2

Rewriting

5^2 - (2z)^2

This is the difference of squares a^2 - b^2 = (a-b)(a+b)

(5-2z)(5+2z)