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Stels [109]
4 years ago
14

Simplify as far as possible without a calculator. (7+2√2)(7−2√2)

Mathematics
1 answer:
bogdanovich [222]4 years ago
5 0

Answer:

41

Step-by-step explanation:

Given

(7 + 2\sqrt{2} )(7 - 2\sqrt{2} ) ← expand factors using FOIL

= 7² - 2\sqrt{2} + 2\sqrt{2} - (2\sqrt{2} )² ← collect like terms

= 49 - 8

= 41

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Step-by-step explanation:

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4 0
3 years ago
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3 years ago
B=11cm, a= 9cm, C= 35 degree
s344n2d4d5 [400]

Answer:

?

Step-by-step explanation:

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3 years ago
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Ganezh [65]

Answer:

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