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