Shadrach12
Shadrach12 Shadrach12
  • 23-07-2021
  • Mathematics
contestada

Use the expression, X^2-7
What is the value of the expression above when n=5

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 23-07-2021

Answer:

18

Step-by-step explanation:

X^2 - 7 =

Since we need to evaluate the expression when X = 5, we replace X with 5.

= 5^2 - 7

Now, according to the correct order of operations, we need to do the exponent first. 5^2 = 5 * 5 = 25

= 25 - 7

Finally, we subtract.

= 18

Answer: 18

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