Question

Factorise the following expressions
1.a^2 -4
3.9p^2-16​

Answer 1

$Factorise the following \\ expressions \\ </p><p>1.a^2 -4 \\ </p><p>3.9p^2-16$

Answer 2

$Factorise the following \\ expressions \\ </p><p>1.a^2 -4 \\ </p><p>3.9p^2-16$