algebra 2

(6+root sign 3)(6- root sign 3)

I am suppose to multiply this problem we are working on multipling radical I can not understand these problems can some walk me through this step for step I would appreciate it.

Use that:

(x-y)(x+y) = x^2 - y^2

(x-y)(x+y)=2x^+xy^-y^

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asked by Ray

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