Answer
$=2x^{18}$
Work Step by Step
Group factors with the same base: $$\frac{20x^{24}}{10x^{6}}$$
$$=(\frac{20}{10})(\frac{x^{24}}{x^{6}})$$
When dividing factors with the same non-zero base, subtract the exponent of the denominator from the exponent of the numerator:
$$=2x^{(24-6)}$$
$$=2x^{18}$$
