The negative sign is confusing. Granted it's like *-1, but with the exponent, i don't know how it should look. I have a test coming up, and these are a couple of practice ones that I got. Please let me know if I'm on the right track.
1)
-4^5
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-4^2 =-4^3 = (-4) (-4) (-4) = -64 ???
2)
( 2 )^3
- (-----)
( 3 )
= (-1) (-2) (-2) (-2) = 8
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= (-1) (-3) (-3) (-3) = 27 ???
Thanks
The minus sign is largely the same as multiplying by -1. So
When you have an exponent you can do that and then use the law although it only works if the minus sign is part of the base being raised. If it's outside the brackets then you act upon it after the exponent
For example whereas
You should always use brackets to make it clear which case you mean
[QUOTE=pickslides;610788]Hi there Mesoc,
Which one is your equation?
You won't always get the same answer!
^ that's the equation. They love throwing these negatives in to screw with us.
Just guessing again,
[/QUOTE
That's correct, but stupid question...why is there a negative in front of the 8, instead of the fraction? or does it not matter?
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Thanks ei, that cleared up a rule i was unsure of.