Question

Solve 4x^2 - 16=0 using factoring method

Answer 1

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Explanation:

`4x^2-16=0`

Let's factor this equation.

`4x^2-16=0`

We will need to factor out the left side of the equation.

`4(x+2)(x-2)=0`

The set factors must be equal to zero.

`x+2=0 \\or\\x-2=0`

So now we have two answers.

`x=-2\\or\\x=2`

Hope this helps!

Answer 2

Steps to solve:

4x^2 - 16 = 0

~Add 16 to both sides

4x^2 = 16

~Divide 4 to both sides

x^2 = 4

~Take square root of both sides

x = ±2

Best of Luck!