What is the factored form of a2 – 121?

(a – 121)(a – 1)

(a – 11)(a 11)

(a 11)(a 11)

(a – 121)(a 1)

The factored form is given by (a+11)(a-11)

Step-by-step explanation:

We have been given the expression

We can write

Thus, we have

Now, using the formula for difference of squares, which is given by

On comparing the above expression, with the given formula, we get a=a, b=11. Thus, we have

Therefore, the factored form is given by (a+11)(a-11)

step-by-step explanation:

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step-by-step explanation: