Question

Determine o valor de x nas igualdades:
a) √4^ : √2 = 4√2
Ps: O ^ é o x.

b)√550 : √11 = x √2

Answer 1

a) 
√4x : √ 2 = 4√2 

√4x = 4√2 * √2

√4x = 4 * 2

2√x = 8

√x = 8/2

√x = 4

(√x)² = (4)²

x = 16

S = {16}

b) 
√550 : √11 = x√2

√550 = x√2 * √11

√550 = x√22

x√22 = √550

x = √550 / √22

x = √550÷22

x = ±√25

x = ±5

S = {-5,5}

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17/02/2016 
Sepauto - SSRC
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Answer 2

Resposta:

√4x = 4√2 * √2

√4x = 4 * 2

2√x = 8

√x = 8/2

√x = 4

(√x)² = (4)²

x = 16

S = {16}

passo-a-passo: