Question

use suitable identity to find (m-5) (m+19)​

Answer 1

here(x+a) (x+b) identity is used

(x+a) (x+b) =

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

m^2+m(19-5)-19*5

m^2+14m-95

Here is your answer. Hope it helps you.