Question

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

Answer 1

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$\framebox{\parbox[t][1.0cm]{4.50cm}{\addvspace{0.2cm} \centering \;\; \, x=2\;\; \;\; } }$

Step-by-step 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!