use the rules for multiplying integers.
Pos times pos equals pos
neg times neg equals posneg times pos or pos times neg equals neg
and keep in mind that a negative exponent turns positive by using the recipricol (changing it to a fraction)
(8 2)-2 = 82*-2 = 8-4 = 1/84 = 1/8*8*8*8 = 1/4096
(8 2)-2 = (8 . 8) -2 = 64-2 = 1/642 = 1/64*64 = 1/4096
Hope this answers your question
Chat with our AI personalities
You can have negative exponents anywhere. When they are in the denominator, they are equivalent to positive exponents in the numerator of a fraction.
A negative exponent becomes positive in the reciprocal. So if you have a number a^x where x is negative, then, a^x = 1/(a^-x) and, since x is negative, -x is positive.
by doing reciprocal
They are the reciprocals of the positive exponents. Thus, x-a = 1/xa
When you multiply a positive number by a negative number you always get a negative number.