Question

give this question solutions

Answer 1

hope that helps .any ask

Answer 2

a] -7m-n
     steps
= -[6m+2n]=-m+n-[6m+n]=-6m-2n=-m+n-6m-2n = -7m-n

b] 3a^2-4b^2  this has the same method too 






hope this helps u