The value of the given expression after the substitution method is 53 and this can be determined by using the arithmetic operations.
Given :
Expression -- [tex]8-\dfrac{m}{n}+p^2[/tex]
The following steps can be used in order to evaluate the given expression:
Step 1 - Write the given expression and equate it to a variable 'a'.
[tex]a = 8-\dfrac{m}{n}+p^2[/tex]
Step 2 - Now, substitute the values of m, n, and p in the above expression.
[tex]a=8-\dfrac{8}{2}+(7)^2[/tex]
Step 3 - Simplify the above expression.
[tex]a=8-4+49[/tex]
[tex]a = 53[/tex]
The value of the given expression after the substitution method is 53.
For more information, refer to the link given below:
https://brainly.com/question/25834626
