Question

(m+n)-3(m-1+n-1)=(mn)-1​ prove that

Answer 1

Answer:

LHS:

(m+n)-3m+3-3n+3

m+n-3m-3n+6

-2m-2n+6

-2(m+n-3)

Answer 2

Answer:

sol: m+n-3n-3n+6=(mn)-1

-2m-2n+6

-2(m+n-3)