Question

factors of m^2 -4-m-21​

Answer 1

m^2-4-m-21

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

{m(m-7)}+{3(m-7)}

m(m-7)+3(m-7)

(m-7)(m+3)

I hope this helps you and please mark me the Brainliast.

Answer 2

Answer:

7,(-3)

Step-by-step explanation:

m²- 4m- 21= 0

→ m²- 7m+ 3m- 21= 0

→ m(m- 7)+ 3(m- 7)= 0

→ (m+ 3)(m- 7)= 0

→ m=(7),(-3)

Pls. mark me as brainliest...