193k views
19 votes

3\sqrt{4x^(2) } +2=9
solve for x

1 Answer

11 votes

Answer:


x =
(7)/(6)

Steps:

3
\sqrt{4x^(2) }+2 = 9

3
\sqrt{4x^(2) } = 9-2

3
\sqrt{4x^(2) } = 7


\sqrt{4x^(2) } = 7 ÷ 3


\sqrt{4x^(2) } =
(7)/(3)


4x^(2) =
((7)/(3))^(2)


4x^(2) =
\frac{49}9}


x^(2) =
\frac{49}9}÷4


x^(2) =
(49)/(36)


x^(2) =
(49)/(36)


x =
\sqrt (49)/(36)


x =
(7)/(6)

Hope this will help :)

User Tliokos
by
3.5k points