Factoring Difference of Squares - Definition & Examples

$a^2 - b^2$ has a factorization that's a product of $2$ rational numbers

$a^2 + b^2$ has a factorization that's a product of $2$ rational numbers

$a^4 - b^4$ has a factorization that's a product of $2$ rational numbers

$a^4 + b^4$ has a factorization that's a product of $2$ rational numbers