Question

$x {}^{n - 2} \times x ^{n - 3} \times x$

Answer 1

$x^n^-^2*x^n^-^3*x=x^n^-^2^+^n^-^3^+^1=x^2^n^-^4.$

Answer 2

$x^{n-2} *x^{n-3}*x=x^{n-2+n-3+1}=x^{2n-4}$