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Question 156213: please help my daughter.
What is the difference between the following..
5^3, -5^3, (-5)^3, and finally -(-5)^3. I have never been good with arithmatic, and cannot seem to figure out what is positive, and negative, or how to come to any conclusions here. I know some answers will be +125, but which are negative and why?: please help my daughter.
What is the difference between the following..
5^3, -5^3, (-5)^3, and finally -(-5)^3. I have never been good with arithmatic, and cannot seem to figure out what is positive, and negative, or how to come to any conclusions here. I know some answers will be +125, but which are negative and why?
Answer by checkley77(3848)  (Show Source): |
Question 156213: please help my daughter.
What is the difference between the following..
5^3, -5^3, (-5)^3, and finally -(-5)^3. I have never been good with arithmatic, and cannot seem to figure out what is positive, and negative, or how to come to any conclusions here. I know some answers will be +125, but which are negative and why?: please help my daughter.
What is the difference between the following..
5^3, -5^3, (-5)^3, and finally -(-5)^3. I have never been good with arithmatic, and cannot seem to figure out what is positive, and negative, or how to come to any conclusions here. I know some answers will be +125, but which are negative and why?
Answer by Earlsdon(3816) (Show Source):
You can put this solution on YOUR website!Remember the rule!
When you multiply or divide two numbers that have the same sign, (+,+) or (-,-), the answer is positive.
When you multiply or divide two numbers that have opposite signs, (+,-) or (-,+), the answer is negative.
 =  Answer is + because (+)*(+)*(+)=(+)
 =  Answer is negative because (-)*(+)*(+)*(+) = (-)
 =  Answer is negative because (-)*(-)*(-) = (-)
 =  =  Answer is positive because (-)*((-)*(-)*(-)) = (-)((-)) = (+)
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