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2*2*2 = 8. I made this 8 positive since the -2 was in brackets. I then took 8 - (3) which is 11.
I meant 8 - (-3) which is 11
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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-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?
a square is an "even" exponent; and all even exponents give you a positive result.
minus a minus is plus
Awesome, thank you so much! I don't think I will ever remember all of these rules!
1 is an odd number:
-3^1 = -3
3^1 = 3
2 is an even number: