Question

If m=(-28)+26+(-28)+26+___(40terms) & n=39 +(-35)+39(-35)+___(40terms) then m-n is equal to_______

Answer 1

m=(20*-28)+(20*26)=20*-2=-40
n=(20*-35)+(20*39)=20*2=40

m-n=-40-40=-80

Answer 2

Answer:

120

Step-by-step explanation:

m=40(-28+26)

    40*-2

     -80

n=40(39+-35)

   40(5)

   200

m-n=-80+200

        120