# Answer to Question #21455 in Analytic Geometry for Ofelia

Question #21455

Factor ax^2-16a

Expert's answer

& ax² - 16a =

first let's factor out the common multiple:

= a(x² - 16) =

and now we can use the difference of squares formula:

= a(x+4)(x-4).

So, ax²-16a = a(x+4)(x-4).

first let's factor out the common multiple:

= a(x² - 16) =

and now we can use the difference of squares formula:

= a(x+4)(x-4).

So, ax²-16a = a(x+4)(x-4).

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