Note that most of the laws for exponents are equally valid for negative, and fractional, exponents. In part, that is because negative and fractional exponents are DEFINED so that those laws continue being valid.Using "^" for power, and "*" for multiplication, some of the fundamental rules are:
a^b * a^c = a^(b+c)
a^b / a^c = a^(b-c)
(a^b)^c = a^(bc)
a^c * b^c = (ab)^c
All of these are valid for any real exponent - including negative and fractional numbers.
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The laws of exponents work the same with rational exponents, the difference being they use fractions not integers.
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That depends how you choose to number the laws.
This is one of the laws of exponents, which states that xa * xb = x(a+b) The base is x, and the two powers (or exponents) are a and b.
the base and the laws of exponent