Virginia
  • Virginia
(-2)^3 - (-3)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Virginia
  • Virginia
2*2*2 = 8. I made this 8 positive since the -2 was in brackets. I then took 8 - (3) which is 11.
Virginia
  • Virginia
I meant 8 - (-3) which is 11
anonymous
  • anonymous
Alright, if your number or variable has an odd power = takes the sign of the variable in the brackets . If your number or variable has an even power = answer always positive. and you must know the following rules: (-)(-) = + (-)(+) = - (+)(+) = + Give it a try now ^_^

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Virginia
  • Virginia
-8 - (-3) = -5. I think where my confusion lies is I thought if you have negative squares, the answer is positive if the base is in parentheses and negative if it is not. But as I type this, I am thinking that ONLY applies to squares and not all exponents?
anonymous
  • anonymous
excellent ^_^
amistre64
  • amistre64
a square is an "even" exponent; and all even exponents give you a positive result.
anonymous
  • anonymous
:)
radar
  • radar
(-2)(-2)(-2)= -8 -8+3=-5 minus a minus is plus
Virginia
  • Virginia
Awesome, thank you so much! I don't think I will ever remember all of these rules!
amistre64
  • amistre64
1 is an odd number: -3^1 = -3 3^1 = 3 2 is an even number: -3^2=9 3^2=9
Virginia
  • Virginia
Got it. Thanks so much!

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