Question

mn if m+n=8 and m-n,=2.

Answer 1

we have,
m+n = 8
=> m = 8-n -- (1)
and m-n = 2
=> 8-n-n = 2 [from (1)]
=> 8-2n = 2
=> -2n = -6
=> n = -6/-2
=> n = 3
putting n = 3 in (1)
m = 8-3
=> m = 5
now mn = 5×3 = 15

Answer 2

Given that
M+n=8 -------1
M-n=2 --------2
So
Let
From 1
M=8-n
Putt in 2
8-n-n=2
-n-n=-6
-2n=-6
2n=6
N=3


Putt the value in 2
M+3=8
M=5
So
Mn
Putt the value
So
Mn =5*3=15






I hope this will help u
By DEVANSH