Question

If m+n p2 =56 and m-n p2 =12 find the value of m and n

Answer 1

Answer:

Step-by-step explanation:

P(m+n, 2) = (m+n)(m+n-1) = 56 = 8 * 7,

Thus, m+n = 8 ....(1)

and P(m-n, 2) = (m-n)(m-n-1) = 12 = 4 * 3,

Thus, m - n = 6 .....(2)

Adding (1) and (2), we get

2m = 8+4 = 12

i.e. m = 6

From (1), n = 8 - m = 8 - 6 = 2

so 6 and 2 are your answers