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Evaluate the expression when m= 2. m2 - 8m -3​

User Ramatu
by
8.5k points

2 Answers

3 votes

Answer:


\boxed{ \bold{ \huge{ \boxed{ \sf{ - 15 }}}}}

Explanation:

Given, m = 2


\sf{ {m}^(2) - 8m - 3}

plug the value of m


\longrightarrow{ \sf{ {2}^(2) - 8 * 2 - 3}}

Evaluate the power : 2²


\longrightarrow{ \sf{4 - 8 * 2 - 3}}

Multiply the numbers: 8 and 2


\longrightarrow{ \sf{4 - 16 - 3}}

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


\longrightarrow{ \sf{ - 12 - 3}}

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


\longrightarrow{ \sf{ - 15}}

Hope I helped!

Best regards! :D

User NSExplorer
by
7.9k points
0 votes

Answer:

-15

Explanation:

When

  • m=2

Expression get value of:

  • m² - 8n - 3 =
  • 2² - 8*2 - 3 =
  • 4 - 16 - 3 =
  • -15
User Marian Zburlea
by
8.2k points

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