Question

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

Answer 1

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 2

Answer:

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

Step-by-step explanation:

Given, m = 2

$\sf{ {m}^{2} - 8m - 3}$

plug the value of m

$\longrightarrow{ \sf{ {2}^{2} - 8 \times 2 - 3}}$

Evaluate the power : 2²

$\longrightarrow{ \sf{4 - 8 \times 2 - 3}}$

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