- x10 ∙ x3 = x10 + 3 = x13.
- x6 : x4 = x6 – 4 = x2.
- (x2)5 = x2 ∙ 5 = x10.
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$$ \frac{(x^4)^3 \cdot x^{16}}{x^{22}} = \frac{x^{12} \cdot x^{16}}{x^{22}} = \frac{x^{12 + 16}}{x^{22}} = \frac{x^{28}}{x^{22}} = x^{28 - 22} = x^6 $$
Ответ: 1) x13; 2) x2; 3) x10; 4) x6