-11
11
When the sum of a number plus 3 is squared, it is 11 more than the sum of the number plus 2 when squared.
3
If you mean: (x+3) squared = (x+2) squared +11 Then the value of x works out as 3
a number equals 2
The sum of 11/12 and 2/3 = 1 7/12
(x + 3)2 = 11 + (x + 2)2x2 + 6x + 9 = 11 + x2 + 4x + 46x - 4x = 11 + 4 - 92x = 6x = 3Check: (3 + 3)2 = 11 + (3 + 2)2 ? ie 36 = 11 + 25 ? Yes. There you have it.
SUM means plus 4+7=11
The sum of 3 plus 4 is 7.
The sum of -5 plus 11 is 6. When a negative is added to the positive you subtract instead of add to get your answer.
simply 9