Question

Solve 9x^2-4=0 using square roots

Answer 1

I agree with the first one

Answer 2

x=
`\sqrt{(4)/(9)`

Explanation:

`9x^(2) -4=0`

add 4 on both sides to cancel it out

`9x^(2) =4`

divide by 9 on both sides to isolate x

`x^(2) =(4)/(9)`

to get rid of the squared you use square root on both sides

`x=\sqrt(4)/(9)`