Question

What are the solution(s) to the quadratic equation 9x2 = 4?

x = and x =
x = and x =
x = and x =
no real solution

Answer 1

x = 2/3 and x = -2/3

Explanation:

We have given equation:

9x² = 4

We have to find the solution of this equation.

multiplying 1/9 to both sides we get,

x² = 4/9

Taking square root on both sides we get,

x = √4/9

x = ±2/3 is the values of x.

Answer 2

`x=(2)/(3)\\x=-(2)/(3)`

Explanation:

To solve the problem shown, you can apply the proccedure shown below:

- Divide both sides of the equation by 9, as following:

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

- Apply square root to both sides of the equation, then you obtain the solution shown below:

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