Question

If 6-m/10 =2 and n-19/2=23/2 then find m2 +n2 --20

Answer 1

Answer:

Ans = 192

Step-by-step explanation:

Given,

6-m/10 =2 n-19/2 = 23/2

6-m = 10*2 n-19 = 23*2/2

6-m = 20 n-19 = 23

-m = 20-6 n= 23+19

-m = 14 n = 42

m = -14

Now,

m2+n2-20

= (-14)^2 +42^2 -20

= 196+1764-20

=1960-20

= 1940