-1-2^-2-(-2)^-2?

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(Please show your work because according to my book the answer is -1 1/2. Thank you!)

2006-09-24 15:42:04 · 2 answers · asked by Chelsey 5 in Education & Reference ➔ Homework Help

-1-1/4-1/4
=-1-2/4
=-1-1/2
=-1 1/2

2006-09-24 15:46:04 · answer #1 · answered by iyiogrenci 6 · 0⤊ 0⤋

-1 - 2^-2 - (-2)^-2 can be rewritten as:

-1 - 1 / (2^2) - 1/((-2)^2)
-1 - 1/4 - 1/4 (2^2 = 4, (-2)^2 also equals 4)
-1 - 2/4
-3/2 (solution!

2006-09-25 02:06:12 · answer #2 · answered by ³√carthagebrujah 6 · 0⤊ 0⤋