Question

(i) (x+3)(x-3)
Find each of the following products:​

Answer 1

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Answer 2

Answer:

Given (x+3)(x−3)

By using the formula (a+b)(a−b)=a²-b²

Applying the formula we get

(x+3)(x−3)=x²-3²

∴(x+3)(x−3)=x²-9

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