Question

Simplify the product of

Answer 1

Answer:

2

Step-by-step explanation:

$(3+\sqrt{7} )(3-\sqrt{7} )\\\\Now we Can Use Identity (a^{2} -b^{2} =(a+b)(a-b)\\a=3 \\ b=\sqrt{7} \\\\3^{2}-\sqrt{7} ^{2} \\9-7=2$

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