2×(-1/2)³-3×(-1/2)²+3×(-1/2)-1
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2×(-1/2)³-3×(-1/2)²+3×(-1/2)-1
2×(-1/2)³-3×(-1/2)²+3×(-1/2)-1
2×(-1/2)³-3×(-1/2)²+3×(-1/2)-1
您好!
2×(-1/2)³-3×(-1/2)²+3×(-1/2)-1
=-1/4-3/4-3/2-1
=-1-3/2-1
=-7/2
2×(-1/2)³-3×(-1/2)²+3×(-1/2)-1
2×(-1/2)³-3×(-1/2)²+3×(-1/2)-1
2×(-1/2)³-3×(-1/2)²+3×(-1/2)-1
您好!
2×(-1/2)³-3×(-1/2)²+3×(-1/2)-1
=-1/4-3/4-3/2-1
=-1-3/2-1
=-7/2