Question

Which would be the best method to use to solve the following equation. Explain your reasoning.

Methods:

Factoring
Square root Property
Completing the Square
Quadratic Formula

1. 3x^2 - 192 = 0
Method:
Why:

Answer 1

.

Explanation:

.

Answer 2

x = ±8

Explanation:

The given equation is :

`3x^2-192=0`

We can use the Square root Property to solve it.

Adding 192 both sides,

`3x^2-192=0\\\\3x^2=192`

Dividing both sides by 3.

`x^2=64\\\\x=√(64) \\\\x=\pm 8`

So, the value of x is equal to +8 and -8.