A negative exponent is simply the reciprocal of the positive exponent. So simply remove the negative sign and find the reciprocal.
Thus, for example, 5-3 = 1/53 = 1/125
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Positive exponents: an = a*a*a*...*a where there are n (>0) lots of a. Negative exponents: a-n = 1/(a*a*a*...*a) where there are n (>0) lots of a.
Fractional exponents follow the same rules as integral exponents. Integral exponents are numbers raised to an integer power.
why the exponents can not be negative
When multiplying numbers with exponents, you add the exponents.
Bedmassb= braquets (solve the braquets)e= exponents (solve the exponents)d-m= division and multiplicationa-s= add or substractare the steps to solve an operation!I wish that that it help to you! :)