Question

m^2-4m-21 please answer fast with correct answer and process

Answer 1

m^2-7m+3m-21
m (m-7) +3 (m-7)
(m+3) , (m-7)

these are the two factors of the following question. I hope it helps you, if it does do Mark me as brainlist. .....

Answer 2

$\large{\boxed{\boxed{\boxed{\bold{\green{Solution :\longrightarrow}}}}}}$

$\bold{= {m}^{2} - m(7 - 3) - 21 }\\ \\ \bold{= {m}^{2} - 7m + 3m - 21} \\ \\ \bold{= m(m - 7) + 3(m - 7) }\\ \\ \bold{= (m - 7)(m + 3)}$