Respuesta :

Answer:

-15

Step-by-step explanation:

When

  • m=2

Expression get value of:

  • m² - 8n - 3 =
  • 2² - 8*2 - 3 =
  • 4 - 16 - 3 =
  • -15

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{ - 15 }}}}}[/tex]

Step-by-step explanation:

Given, m = 2

[tex] \sf{ {m}^{2} - 8m - 3}[/tex]

plug the value of m

[tex] \longrightarrow{ \sf{ {2}^{2} - 8 \times 2 - 3}}[/tex]

Evaluate the power : 2²

[tex] \longrightarrow{ \sf{4 - 8 \times 2 - 3}}[/tex]

Multiply the numbers: 8 and 2

[tex] \longrightarrow{ \sf{4 - 16 - 3}}[/tex]

The positive and negative integers are always subtracted but posses the sign of the bigger integer :

[tex] \longrightarrow{ \sf{ - 12 - 3}}[/tex]

The negative integers are always added but posses the negative ( - ) sign

[tex] \longrightarrow{ \sf{ - 15}}[/tex]

Hope I helped!

Best regards! :D