Question

Pfvrrrrr ?????
Me ajuda ​

Answer 1

a) $x^3 * x^{-7}*x^6$

$x^{3-7+6}$

$x^{-4+6}$

$x^2$

b) $x^{-1}:x^{-3}$

$x^{[-1-(-3)]$

$x^{-1+3}$

$x^2$

c) $(x^6)^{-2}$

$x^{6.(-2)}$

$x^{-12}$

d)$a^9*a^{-4}*a^7*a^{-15}$

$a^{9-4+7-15}$

$a^{5+7-15}$

$a^{12-15}$

$a^{-3}$