Example entries -42 or (-4)2 will result in different answers.
Note that -42 = -1 * 4 * 4 = -16 while (-4)2 = (-4) * (-4) = 16. See notes below.
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"When a minus sign occurs with exponential notation, a certain caution is in order. For example, (-4)2 means that -4 is to be raised to the second power. Hence (-4)2 = (-4) * (-4) = 16. On the other hand, -42 represents the additive inverse of 42. Thus -42 = -16. It may help to think of -x2 as -1 * x2 ..."
xm * xn = xm+n
xm / xn = xm-n
(xm)n = xm*n
(x * y)m = xm * ym
(x / y)m = xm / ym
x-m = 1 / xm
(x / y)-m = ym / xm
x1 = x
x0 = 1
00 = 1 (definition)
If xm = y then y = m√y = y(1/m)
xm/n = n√xm
 Algebra and Trigonometry: A Functions Approach; M. L. Keedy and Marvin L. Bittinger; Addison Wesley Publishing Company; 1982, page 11.
For more detail on Exponent Theory see http://mathworld.wolfram.com/ExponentLaws.html
To calculate fractional exponents use our Fractional Exponents Calculator.
To calculate root or radicals use our Roots Calculator.