I.- Potencias


628.		629.

$\left ( a^{2} \right )^{4}$		$[(ab^{2})^{3}]^{4}$


630.		631.

$(-x^{2}z^{3})^{3}$		$(-2a^{4}b^{2}c)^{2}$


632.		633.

$(-7a^{3}b^{2}c^{3})^{5}$		$(5a^{6}b^{3}c^{2}d^{4})^{n}$


634.		635.

$([(a^{m})^{n}]^{r})^{s}$		$([(-3a^{2}b^{3}c^{3}d^{n})^{4}]^{r})^{s}$


636.		637.

$(-5a^{-3}b^{2}d^{3})^{2}$		$(\pm 3a^{2}bc^{3})^{2}$


638.		639.

$(-a^{4}bd^{2})^{5}$		$(2a^{2}bc^{2})^{2}$


640.		641.

$(5a^{3}b^{2}c^{-4}d)^{-3}$		$(5ab^{2}c^{3})^{3}$


642.		643.

$\left ( \frac{a^{3}}{a^{2}} \right )^{4}$		$\left ( \frac{a^{2}b^{5}}{d^{2}c} \right )^{4}$


644.		645.

$\left ( -\frac{3a^{2}c}{4bd^{3}} \right )^{4}$		$\left ( -\frac{2a^{5}b^{2}c^{3}}{3d^{2}m^{5}} \right )^{p}$


646.		647.

$\left ( \frac{5a^{4}b^{r}c^{s}}{6a^{3}b^{n}c^{t}} \right )^{p}$		$\left ( x-a \right )^{4}$


648.		649.

$\left ( 2a+b \right )^{5}$		$\left ( a+\frac{1}{a+1} \right )^{2}$

650.

$\left ( 2a^{2}+3bc^{2} \right )^{4}$