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Which is a value of x, when 3x^2 + 4 = 40?

 

A) x = 2√3

 

B) x = 2√6

 

C) x = 2√11

 

D) x = 3√2

 

E) x = 6√2

 Sep 12, 2019

Best Answer 

 #1
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Solve the given equation for 'x'

3x^2 = 36

x^2 =12

x = +- sqrt 12

x = +- sqrt(4*3)

x = +- 2 sqrt 3          if you are only looking for positive values    x = 2 sqrt 3

 Sep 12, 2019
 #1
avatar+19914 
0
Best Answer

Solve the given equation for 'x'

3x^2 = 36

x^2 =12

x = +- sqrt 12

x = +- sqrt(4*3)

x = +- 2 sqrt 3          if you are only looking for positive values    x = 2 sqrt 3

ElectricPavlov Sep 12, 2019

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