Question

evaluate (a+4) (a-4)​

Answer 1

(a+ 4)(a - 4)

=> (a) ² - (4)²

=> a² - 16


Hope it helps you ♥️

Answer 2

$a {}^{2} - 4 {}^{2} \\ = > a {}^{2} - 16 \\ = > hope \: it \: helps \: u \\ \: mark \: me \: brainlist$