Question

X²-9y²
can someone assist plz​

Answer 1

`{x}^(2) - 9 {y}^(2) \\ = {x}^(2) - {3}^(2) {y}^(2) \\ = {x}^(2) - {(3y)}^(2) \\ = (x - 3y)(x + 3y)`