Question

Factorise:- a²b^2-4​

Answer 1

Answer:

1^22+-4 that is the answer

Answer 2

Answer:

$(ab + 2)(ab - 2)$

Step-by-step explanation:

${a}^{2} {b}^{2} - 4 \\ \\ {(ab)}^{2} - {(2)}^{2} \\ \\ (ab + 2)(ab - 2)$