Question

Evaluate 8 − m n + p 2 8− n m ​ +p 2 8, minus, start fraction, m, divided by, n, end fraction, plus, p, squared when m = 8 m=8m, equals, 8, n = 2 n=2n, equals, 2, p = 7 p=7p, equals, 7.

Answer 1

`8 - (m)/(n) + p^2 = 53`

Explanation:

Given

`8 - (m)/(n) + p^2`

`m = 8`

`n = 2`

`p = 7`

Required

Evaluate

To solve this;

we simply substitute the values of m, n and p in the given expression

In other words; we replace m, n and p with their actual values;

`8 - (m)/(n) + p^2`

becomes

`8 - (m)/(n) + p^2 = 8 - (8)/(2) + 7^2`

Solve fraction

`8 - (m)/(n) + p^2 = 8 - 4 + 7^2`

Take square of 7

`8 - (m)/(n) + p^2 = 8 - 4 + 49`

Add result

`8 - (m)/(n) + p^2 = 53`

The expression has been evaluated and the result of
`8 - (m)/(n) + p^2` is 53, provided that m = 8, n = 2 and p = 7