2 years ago

Tyler simplified the expression x³y9. His procedure is shown below.

Mathematics

1 answer:

V125BC [204]2 years ago

5 0

Answer:

(b) both powers should be in the denominator with positive exponents

Step-by-step explanation:

The applicable rule of exponents is ...

a^-b = 1/a^b

The correct simplification is ...

$x^{-3}y^{-9}=\dfrac{1}{x^3}\cdot\dfrac{1}{y^9}=\boxed{\dfrac{1}{x^3y^9}}$

Both variables should have positive exponents in the denominator.

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