[2×(-1/2)²-3²×(-1/3)³]÷[1-(-1/2)³]
[2×(-1/2)²-3²×(-1/3)³]÷[1-(-1/2)³]
各位大虾们,1)(2a²)³•2²•a-(3a³) &s
由1³=1=1²,1³+2³=9=3²,1³+2³
计算:1】—(2ab)³+3ab x a²b²2】(—2x³)² x
用数学归纳法证明:1³+2³+3³...+n³=n²(n+1)&sup
-1²+(-1)³×二分之五+(2/3)²×(-7/2)²=
有理数乘方的算术题,-6²×(-1又1/2)²-3³÷(-1又1/2)³×(-3
1÷[(-2)²×0.5²-(-2.24)÷(-2)³]-1又7/18
(1)(2x+1)²+|y-3|=0 则2x³-y³=?
1、(4x²y-2x³)÷(-2x)²
不论X取任何值,代数式(X³+5X³+4X-1)-(-X²-3X+2X³-3)+
1.分解因式:(1)16a-b²/9(9分之b²)(2)3ab³-3a³b2.利