15 + 10 - 13 - 5 = 7
13+-12--5 = 6
5 - a - 1 + c - 6a2 + a2
6
5/8
15 + 10 - 13 - 5 = 7
13+-12--5 = 6
13 - 12 - (-5) 1 - (-5) 1 + 5 6
6
5 - a - 1 + c - 6a2 + a2
6
It is the same as 23+50 = 73
5m-13n-n+4m= (5+4)m+(-13-1)n= 9m-14n
21 + 8 / 5 = 21 + 8/5 = 21 + 13/5 = 223/5
5/8
is eassy
the answer to this problem is -2x^2y^2