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What is the factored form of a^2 - 121?
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What is the factored form of a^2 - 121?

User Watchtower
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1 Answer

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A^2 - 121
= a^2 - 11^2
=(a+11)(a-11)
Since a^2-b^2 =(a+b)(a-b)
User Fatdragon
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