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yarga [219]
3 years ago
5

What is the following product?

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
5 0
Hello : 
by identity : (a-b)² = a² +b² -2ab
(x√7-3√8)(x√7-3√8) = (x√7-3√8)² = (x√7)²+(3√8)² -2(x√7)(3√8)
                                                    =7x²+72 -6x√56
                                                     = 7x²+72-6x√(14×4)
                                                     = 7x²+72-12x√(14).because  :√(14×4)=2√14
Answer B
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Step-by-step explanation:

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oksano4ka [1.4K]

Answer:

Option b.

Step-by-step explanation:

We can easily solve this problem by using a graphing calculator or plotting tool.

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Please, see attached picture below.

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