Question

The sum of 2mn, -4mn, 8mn and -6mn is _____

Answer 1

Answer:

The sum of 2mn , - 4mn , 8mn and -6mn is ?

$\longrightarrow\sf{ 2mn + (-4mn) + 8mn + (-6mn) }$

$\longrightarrow\sf{ ( 2 - 4 + 8 - 6)mn }$

$\longrightarrow\sf{ ( -2 + 8 - 6)mn }$

$\longrightarrow\sf{ ( 6 - 6)mn }$

$\longrightarrow\sf{ 0 }$

Answer 2

Answer:

If we add the expressions 8mn,−3mn,−2mn,5mn then we get,

8mn−3mn−2mn+5mn

=13mn−5mn

=8mn.