a) (√3 + 1)²
b) (3 - √2)²
c) (√5 + √2)²
d) (√11 + √2) . (√11 - √2)
a) (√3 + 1)² =>
3 + 2√3 + 1
4 + 2√3 --> colocando em evidencia
2( 2 + √3)
>>>>>>>>>>>>>>>>>>>>>>>>>>>
9 - 6√2 + 2
11 - 6√2
c) (√5 +√2)²
5 + 2√10 + 2
7 + 2√10
>>>>>>>>>>>>>>>>>>>>>>>
√11² - √2²
11 - 2
9
♦ Espero que tenha ajudado ♦
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Answers & Comments
Verified answer
a) (√3 + 1)² =>
3 + 2√3 + 1
4 + 2√3 --> colocando em evidencia
2( 2 + √3)
>>>>>>>>>>>>>>>>>>>>>>>>>>>
b) (3 - √2)²
9 - 6√2 + 2
11 - 6√2
>>>>>>>>>>>>>>>>>>>>>>>>>>>
c) (√5 +√2)²
5 + 2√10 + 2
7 + 2√10
>>>>>>>>>>>>>>>>>>>>>>>
d) (√11 + √2) . (√11 - √2)
√11² - √2²
11 - 2
9
♦ Espero que tenha ajudado ♦