Extend the meaning of a whole-number exponent.

$$a^n=\underbrace{a \cdot a \cdot a \cdots a}_{n \text { factors }},$$

where $a$ is any integer. Use this definition to find the following value.

$$(-2)^4$$

Extend the meaning of a whole-number exponent.

$$a^n=\underbrace{a \cdot a \cdot a \cdots a}_{n \text { factors }},$$

where $a$ is any integer. Use this definition to find the following value.

$$2^4$$

Use the appropriate abbreviation to complete the sentence.

Cholinesterase inhibitors can be used to treat ______________________ .

For the function given, find any extrema, along with the $x$-value at which they occur. Then sketch a graph of the function.

$f(x)=x^3-3 x+2$

Simplify the expression and eliminate any negative exponent(s).

$\left(12 x^2 y^4\right)\left(\frac{1}{2} x^5 y\right)$

Solve each exponential equation by expressing each side as a power of the same base and then equating exponents.

$$9 ^ { x } = 27$$

Indiquez qui va prendre quoi. Écrivez des phrases compl$\`{e}$tes.

Nathan a faim et soif. II a 15 euros.

In which one of these pairs do the two species resemble each other most closely in chemical properties?
(a) ${ }_1^1 \mathrm{H}$ and ${ }_1^1 \mathrm{H}^{+}$, (b) ${ }_7^{14} \mathrm{~N}$ and ${ }_7^{14} \mathrm{~N}^{3-}$, (c) ${ }_6^{12} \mathrm{C}$ and ${ }_6^{13} \mathrm{C}$.

Factor fully.

$$x^4+x^3-13 x^2-25 x-12$$

Solve each exponential equation, by expressing each side as a power of the same base and then equating exponents.

$$5 ^ { x } = 125$$

Solve the linear system by graphing.

$$\begin{array} { l } { \frac { 3 } { 2 } y - x = 3 } \\ { 3 y = 2 x - 6 } \end{array}$$

Evaluate: Can people find a way of life in which they are fully happy, or, like the seafarer, will they always have longings for another place? Explain.

Solve each exponential equation by expressing each side as a power of the same base and then equating exponents.

$$3 ^ { x } = 81$$

Factor fully.

$$6 x^3+x^2-31 x+10$$