Question

Factor: m^2 - 20m - 21

Answer 1

(m-21) (m+1)there I thinks it's right unless I messed up my work

Answer 2

Answer:

$(m - 21)(m + 1)$

Step-by-step explanation:

$m^{2} - 20m - 21$

Lets split the middle term.

$=> m^{2} - 21m + m - 21$

$=> m(m - 21) + 1(m - 21)$

$=> (m - 21)(m + 1)$