26.1k views
0 votes
When the sum of a number plus 3 is squared, it is 9 more than the sum of the number plus 2 when squared.

1 Answer

5 votes

(x+3)^2=(x+2)^2+9\\ x^2+6x+9=x^2+4x+4+9\\ 2x=4\\ x=2
User Pramod Tapaniya
by
6.8k points