Question

Resolva as equações irracionais: a) \/x + 6 = 8 b)\/3x = 6c) \/x - 6 = 10d) \/2x + 5 = \/x + 8 e) \/13 v12 - x = 4

Answer 1

Oi Laiza

a) 

√(x + 6) = 8

x + 6 = 64 
x = 64 - 6 = 58 

b)

√(3x) = 6

3x = 36
x = 36/3 =12

c)

√(x - 6) = 10

x - 6 = 100
x = 106 

d) 

√(2x + 5) = √(x + 8)

2x + 5 = x + 8
2x - x = 8 - 5
x = 3 

e)

√13*(√12 - x) = 4

13*(12 - x) = 4 

156 - 13x = 4

13x = 156 - 4 = 152

x = 152/13 

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