Autor: João Lopes Pontes | Publicado: 2012-05-15T12:49:00-07:00

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Escola______________________Aluno______________

Lista
de exercícios do 9° ano





1-&nbsp;&nbsp; Resolva
as seguintes adições e subtrações de radicando

a)&nbsp;&nbsp; ³√27
+ ⁴√16
= 5

b)&nbsp;&nbsp; &nbsp;³√125 - ³√8 = 3

c)&nbsp;&nbsp; &nbsp;√25 - √4 + √16 = 7

d)&nbsp;&nbsp; √49
+ √25 - ³√64 = 8

e)&nbsp;&nbsp; 7√7
- 2√7 - 3√7 = 2√7

f)&nbsp;&nbsp;&nbsp; &nbsp;8³√6 - ³√6 – 9³√6 = -2³√6

g)&nbsp;&nbsp; &nbsp;⁴√8 + ⁴√8 –
4⁴√8
= -2⁴√8

h)&nbsp;&nbsp; 3√98
- 2√50 = 11√2

i)&nbsp;&nbsp;&nbsp;&nbsp; 3√8
- 7√50 = -29√2

j)&nbsp;&nbsp;&nbsp;&nbsp; 2√32
- 5√18 = -7√2

k)&nbsp;&nbsp; √75
- 2√12 + √27 = 4√3

l)&nbsp;&nbsp;&nbsp;&nbsp; √12
- 9√3 + √75 = -2√3

m) &nbsp;√98 - √18 - 5√32 = -16√2

n)&nbsp;&nbsp; &nbsp;5√180 + √245 - 17√5 = 20√5