Question

find positive root of √3x2+6=9

find the positive root of 2 root 3 X square + 6 is equal to 9


​

Answer 1

Answer:

Hi ,

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

I hope this helps you.

****