Let us give this unknown number the symbol x , then you can formulate this equation:
( x + 3 )^ 2 = 13 + ( x + 2)^ 2
x^2 + 6x + 9 = 13 + x^2 + 4x + 4
subtract x^2 from both sides, you'll obtain:
6x + 9 = 4x + 17
6x - 4x = 17 - 9
2x = 8
So, x=4
2
4
4
if it is not this . -3<x<-2 < or equal
Are you asking me to tell you the answer? Because its easy and simple .
When the sum of a number plus 3 is squared, it is 11 more than the sum of the number plus 2 when squared.
2
3
4
2
2
2
4
4
If you mean: (x+3) squared = (x+2) squared +11 Then the value of x works out as 3
a number equals 2
if it is not this . -3<x<-2 < or equal