Answer:
[tex]5(x+2)(x-2)[/tex]
Step-by-step explanation:
Find the greatest common factor (GCF) of the 2 terms:
GCF is 5.
Factor out the GCF:
[tex]5x^2-20\\5(\frac{5x^2}{5} -\frac{20}{5} )\\5(x^2-4)[/tex]
Rewrite as a difference of squares ([tex]a^2-b^2=(a+b)(a-b)[/tex]):
[tex]5(x^2-2^2)\\5(x+2)(x-2)[/tex]
