Question

Factor fully: 9X^2-121

Answer 1

[AI-generated answer — Bot GPT 3.5]

The given expression, 9X^2 - 121, is a difference of squares.

We can rewrite 121 as (11)^2.

So, 9X^2 - 121 = (3X)^2 - (11)^2.

According to the identity, a^2 - b^2 = (a + b)(a - b),

we can factor 9X^2 - 121 as (3X + 11)(3X - 11).

Therefore, the expression 9X^2 - 121 is factorized as (3X + 11)(3X - 11).