Question

Find the positive root of square root.3x^2+6=9

Answer 1

Answer:

1

Step-by-step explanation:

3x^2+6=9

3x^2=9-6

3x^2=3

x^2=1

x=1

Answer 2

Answer:

Sqrt ( 3x^2 + 6 ) = 9

Do the square bothsides of the

Equation.

3x^2 + 6 = 81

3x^2 = 81 - 6

3x^2 = 75

Divide bothsides with 3

3x^2 / 3 = 75/ 3

x^2 = 25

Now ,

x = sqrt ( 25 )

x = + or - 5

But we need pisitive root ,

therefore ,

x = 5

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