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grin007 [14]
3 years ago
13

Can someone please help me asap!!??

Mathematics
2 answers:
laila [671]3 years ago
8 0

Answer:

\frac{a^7}{b^6}  (second option in your list)

Step-by-step explanation:

Notice that every base with negative exponent can be written with positive exponent on the opposite side of the fraction line, therefore:

The a to the exponent "-4" in the denominator can be written as a to the exponent 4 in the numerator, thus giving two bases a in the numerator, one with exponent 3 and another one with exponent 4 which combined with the rule of product of numbers with same base, leads to the addition ofthe exponents:  a to the power 7 in the numerator.

We do something similar with the base b (which in the numerator appears with a "-1" in the exponent), we write it in the denominator with exponent "+1".

Therefore we end up with the following:

\frac{a^3\,\,b^{-1}}{a^{-4}\,\,b^5}=\frac{a^3\,a^4}{b^5\,b^1}  =\frac{a^7}{b^6}

Bogdan [553]3 years ago
7 0

Answer:

b ) a^7/b^6 is the correct answer

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