Question

If 5m + 18 is equal to N3
then find the value of
(M+N)​

Answer 1

Answer:

m + n = (n³ + 5n - 18)/5

Step-by-step explanation:

Given,

5m + 18 = n³ ..... (1)

or, 5m = n³ - 18

or, m = (n³ - 18)/5

Thus m + n = (n³ - 18)/5 + n

= (n³ - 18 + 5n)/5

= (n³ + 5n - 18)/5

Thus we obtain value of (m + n) in terms of n only.

Note:

However we can obtain value of n in terms of m only from equation (1) and thus the value of (m + n) is also expressible in terms of m only.

Answer 2

Answer:

verify that the sum of 29 and the number obtained by reversing the digits is multiple of 11