(x + 3)2 = (x + 2)2 + 13
ie x2 + 6x + 9 = x2 + 4x + 4 + 13
ie 6x + 9 = 4x + 17
Subtract 4x from each side: 2x + 9 = 17
Subtract 9 from each side: 2x = 8
Divide each side by 2: x = 4
Check: Does 72 = 62 + 13? Yes. Job done.
4
2
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
4
4
2
2
2
a number equals 2
if it is not this . -3<x<-2 < or equal
If you mean: (x+3) squared = (x+2) squared +11 Then the value of x works out as 3