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pogonyaev
3 years ago
14

Find the product -7(-a2)(-b3)

Mathematics
1 answer:
vlada-n [284]3 years ago
7 0
-7(-a^2)(-b^3)=\boxed{-7a^2b^3}
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Step-by-step explanation:

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\dfrac{x^{4}}{x^{9}}=x^{4-9}=x^{-5}\\\\x^{-5} \ is \ not \ a \ polynomial.

                                 Addition        subtraction  multiplication   Division

Natural numbers          yes             not closed    Yes                   Not closed

Integers                        Yes                 Yes              Yes                   not closed

Rational numbers         Yes                 Yes              Yes                     not closed

Irrational numbers       not closed   not closed   not closed   not closed

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