Question

Раскройте скобки:m+(8+n-k); a-(b-c+d); x+(y-z+8); m-(-2+n+k)

Answer 1

m+(8+n-k)=m+8+n-k

a-(b-c+d)=a-b+c-d

x+(y-z+8)=x+y-z+8

m-(-2+n+k)=m+2-n-k

Answer 2

m+(8+n-k)=m+8+n-k;

a-(b-c+d)=a-b+c+d;

x+(y-z+8)=x+y-z+8;

m-(-2+n+k)=m+2+n+k