ejvega21 ejvega21
  • 09-10-2020
  • Mathematics
contestada

What is the value of for -6a^-3b^2 for a=-2 and b=4?

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hnori22003
hnori22003 hnori22003
  • 09-10-2020

Easy buddy....

[tex] - 6 \times ({ - 2})^{ - 3} \times ({4})^{2} = [/tex]

[tex] - 6 \times ({ - \frac{1}{2} })^{3} \times 16 = \\ [/tex]

[tex] - 6 \times ( - \frac{1}{8}) \times 16 = \\ [/tex]

16 simplifies to by 8 and equals 2

[tex] - 6 \times ( - 2) = 12[/tex]

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And we're done.

Thanks for watching buddy good luck.

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