Question

factor 36z^2-1

Answer 1

Perfect square binomial:

(6z+1)(6z-1)

Answer 2

36z^2=(6z)^2

Answer 3

So,
36z^2-1=(6z)^2-1^2

Answer 4

Hint: a^2-b^2=(a+b)(a-b)

Answer 5

Does it help?

Answer 6

yes thank you!!