2)怎么算m⁴？

计算：2-2*2-2*3-2*4

2-2^2-2^3-2^4-2^5-2^6-2^7-2^8-2^9+2^10 = 2-2^2-2^3-2^4-2^5-2^6-2^7-2^8-2^9+(2^9+2^9) = 2-2^2-2^3-2^4-2^5-2^6-2^7-2^8+2^9 = 2-2^2-2^3-2^4-2^5-2^6-2^7+2^8 = 2-2^2-2^3-2^4-2^5-2^6+2^7 = 2-2^2-2^3-2^4-2^5+2^6 = 2-2^2-2^3-2^4+2^5 = 2-2^2-2^3+2^4 = 2-2^2+2^3 = 2+2^2 = 2+4 = 6。 全部

   2-2^2-2^3-2^4-2^5-2^6-2^7-2^8-2^9+2^10 = 2-2^2-2^3-2^4-2^5-2^6-2^7-2^8-2^9+(2^9+2^9) = 2-2^2-2^3-2^4-2^5-2^6-2^7-2^8+2^9 = 2-2^2-2^3-2^4-2^5-2^6-2^7+2^8 = 2-2^2-2^3-2^4-2^5-2^6+2^7 = 2-2^2-2^3-2^4-2^5+2^6 = 2-2^2-2^3-2^4+2^5 = 2-2^2-2^3+2^4 = 2-2^2+2^3 = 2+2^2 = 2+4 = 6。
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