integers

Double-Sign	Meaning
++	+
--	+
+-	-
-+	-

• If the exponent is an odd number, the result will be negative

\begin{equation} (-2)^3 = -8 \end{equation}

• If the exponent is even, the result will be postive

  \begin{equation} (-2)^2 = 4 \end{equation}

• In the case of a negative exponent, division is performed

\begin{equation} \begin{aligned} & = 2^{-3} \\ & = (\frac{1}{2})^3 \\ & = \frac{1\times1\times1}{2\times2\times2} & = \frac{1}{8} \end{aligned} \end{equation}

• If the negative is outside of the brackets, the base is positive
• This is beause of BEDMAS. Negative numbers fall under subtraction so we do division/multiplication/powers before them

Notes that link to this note (AKA backlinks).

• Math, Sep 19, P6