7 Or -8
7
72 + 7 = 56
X^2 + x = 56 ie x(x +1) = 56 so x is 7
The answer is 7. Seven squared is forty nine. 49 plus 7 equals 56.
65
35 squared = 35 x 35 = 1225 56 squared = 56 x 56 = 3136
12
By "squared", I'm certain you mean the 562, correct? If that's what you mean, then the answer to that is 75,264. The small 2 means that you multiply that number by itself, so 56x 56=3136, and 3136 x 24=75,264.
56
Yes it is.
56+26 = 82