Question

I need help with the equation for math​

Answer 1

Answer:

  -12a^-5   or   -12/a^5

Step-by-step explanation:

The rules of exponents apply:

  (a^b)(a^c) = a^(b+c)

  1/a^b = a^-b

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$\dfrac{2}{3}a^{-2}b^{-1}\cdot -18a^{-3}b^1=\dfrac{2(-18)}{3}a^{-2-3}b^{-1+1}\\\\=-12a^{-5}b^0=-12a^{-5}\\\\=\dfrac{-12}{a^5}$