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Anonymous
(-2/3)^2 = 4/9
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3-2 = 9
a3*a-2 = a(3-2) = a
-32 = -(32) = -9 (-3)2 = 9 The difference is 9 - (-9) = 18.
30 + 3-2 = 10/9
That's the same as (-2/3) x (-2/3).