Question

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factorise x²-11²​

Answer 1

Answer:

use a2-b2

a2-b2=(a+b)(a-b)

a=x2

b=121 which can be written as 11²

x²-11²=(x+11)(x-11)

ans is (x+11)(x-11)

Answer 2

Answer:

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Step-by-step explanation:

This is a property of (x²-b²)=(x+b)(x-b)

-- (x+11) (x-11)

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