Question

Which expression is equivalent to ``x 10/x 2?
x 15
x 2
x 0
x 8

Answer 1

Assuming the expression is x^{10} / x^{2}, use exponent rule a^m / a^n = a^{m-n}:

x^{10} / x^{2} = x^{10-2} = x^{8} (for x ≠ 0).