Take any number, we will refer to that number as n. Now:
-n+n=0
For example:
-1+1=0
'a' can be any number whatsoever. The sum of +a and -a is always zero.
The two numbers whose sum is 58 and whose difference is 16 are 21 and 37.
17 and 3 are two prime numbers whose sum is 20. Their product is 51.
.
19
'a' can be any number whatsoever. The sum of +a and -a is always zero.
The two numbers whose sum is 58 and whose difference is 16 are 21 and 37.
no
find two positive numbers whose product is a maximum. 1.) the sum is s.
17 and 3 are two prime numbers whose sum is 20. Their product is 51.
.
19
There are no numbers to circle!
Wrong
The sum of two numbers has the same sign as the one whose magnitude is larger.
1+1, 2+2
67