I feel really stupid for not remembering this... I don't remember how to deal with negative exponents.

What would I have to do with this to get rid of the negative exponent? -2x^3

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- Dec 22nd 2008, 08:06 PMevenstar7139Negative Exponent
I feel really stupid for not remembering this... I don't remember how to deal with negative exponents.

What would I have to do with this to get rid of the negative exponent? -2x^3 - Dec 22nd 2008, 08:13 PMtester85
- Dec 24th 2008, 10:35 AMCoele
if you mean: (2x^-3) then:

simple rules:

x^2 = x.x

x^-2 = (1/x)^2

a minus sign before your exponent just means you need to write 1/ (by whatever you need to calculate)

ex:

x^-3 = (1/x)^3

25^-2 = (1/25)²

4^(-1/2) = (1/4)^(1/2) = square root out of 1/4

...

if you mean (-2x)^3 then its simply (-1)^3 . (2x)^3 = ... - Dec 29th 2008, 03:49 AMHallsofIvy
- Jan 1st 2009, 04:36 PMRussian
Usually when there is a negative exponent ,you just flip the equation:

example 5 to negative one power = one fifth

the power becomes positive. - Jan 2nd 2009, 08:44 AMHallsofIvy