stevens18
stevens18
07-09-2017
Mathematics
contestada
What is the following product?
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Аноним
Аноним
07-09-2017
the answer is 98-40 square root 6
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choixongdong
choixongdong
07-09-2017
using (a-b)^2 = a^2 - 2ab + b^2
so
(5√2 - 4√3)^2
= (5√2)^2 - 2 (5√2)(4√3) + (4
√3)^2
= 50 - 40
√6 + 48
= 98 - 40
√6
answer
D. last choice
98 - 40√6
Answer Link
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