aa008
I do not know why no body has solved in this way-
\(x^n\)=\(x^{(n+2)}\)
\(x^n\)=\(x^n\)*\(x^2\)
so
\(x^2\)=1
x=-1 or +1
Statement 1: sufficient
put -1 and +1 in the expression
only -1 satisfy the equation
so x=-1
Statement 1: sufficient
put -1 and +1 in the expression
only -1 satisfy the equation
so x=-1
so both the statements gives the solution hence answer is D
This reasoning is not correct.
While you arrived at the correct answer, it was by luck. When you divided by \(x^n\), you eliminated 0 as a solution.