Question
The sum of a nonzero integer and zero has the same value as the square of the integer.What is the integer?
not just an answer.
A.-2
B.-1
C.0
D.1
E.2
not just an answer.
A.-2
B.-1
C.0
D.1
E.2
Answers
Reiny
x+0 = x^2
x^2 - x = 0
x(x-1) = 0
x = 0 or x = 1, but x was to be a non-zero integer
so x = 1
x^2 - x = 0
x(x-1) = 0
x = 0 or x = 1, but x was to be a non-zero integer
so x = 1