Answer:
76
Step-by-step explanation:
[tex]m \: = - 6 \: \: {m}^{2} - 6m + 4[/tex]
[tex] { (- 6)}^{2} - 6( - 6) + 4[/tex]
[tex]36 + 36 + 4[/tex]
[tex]76[/tex]