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Evaluate -2a^2 if a = -5/2
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ok so can u tell me : what is \[\huge{(\frac{-5}{2})^2}\]
6.25
-6.25
ok just tell me the value in fractions
6 1/4
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ok so according to you : \[\huge{\frac{-5^2}{2^2}=\frac{61}{4}}\]
so what is (-5)^2 ?
-25/2
sorry to say champs but u r wrong ..
:O why?
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i'm lost..
|dw:1341998559788:dw|
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