Answer:
Step-by-step explanation:
To factor the expression 9m^2 - 100, you can use the difference of squares formula, which states that a^2 - b^2 can be factored as (a + b) (a - b).
So, 9m^2 - 100 can be written as (3m)^2 - 10^2, where a is 3m and b is 10.
Using the difference of squares formula, we get:
(3m + 10) (3m - 10)