Question

simplify (3+√2)(3-√2)​

Answer 1

Answer:

7.

Step-by-step explanation:

(3+root 2) (3-root 2)

By using identity,

(a-b) (a+b) = a^2-b^2

3+root 2) (3-root 2) = 9-2 = 7.

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