Respuesta :

Admin2
((-196z^3)/(y^21))-(2z/y^7)
apologiabiology
anything to the 0 power is 1
so we get
-1y⁻⁷z
(-1)(y⁻⁷)(z)
and [tex]x^{-m}= \frac{1}{x^m} [/tex]
[tex](-1)(y^{-7})(z)= \frac{(-1)(z)}{y^7} = \frac{-z}{y^7} [/tex]

last option

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