 admin # What's the correct equivalent factored form for the expression x^4 - 121

2 months ago

## Solution 1 Guest #5493781
2 months ago

Since both terms are perfect squares, factor using the difference of squares formula, a^2-b^2=(a+b) (a-b) where a=x^2 and b=11.

(x^2+11) (x^2-11)

.

Step-by-step explanation:

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