9) -6q^-2 11) (1)/(x^-2) 13) -(2x)/(a^-4) 15) (a^-1)/(b^-1)

Question

Pergunta

Answer 1

9)

$-6q^{-2}$

To simplify this expression, we can rewrite it as

$-6 \cdot \frac{1}{q^2}$ . This means that the expression is equal to

$-\frac{6}{q^2}$ .

11)

$\frac {1}{x^{-2}}$

To simplify this expression, we can rewrite it as

$x^2$ . This means that the expression is equal to

$x^2$ .

13)

$-\frac {2x}{a^{-4}}$

To simplify this expression, we can rewrite it as

$-2x \cdot a^4$ . This means that the expression is equal to

$-2x \cdot a^4$ .

15)

$\frac {a^{-1}}{b^{-1}}$

To simplify this expression, we can rewrite it as

$\frac{1}{a} \cdot \frac{1}{b}$ . This means that the expression is equal to

$\frac{1}{ab}$ .