(1)9x³=8/3
x^3=8/27
x=2/3
(2)(x-5)³=-125
(x-5)^3=(-5)^3
x-5=-5
x=0
(3)8x³-3=3/8
8x^3=3/8+3
x^3=27/64
x=3/4
(4)3(1-x)³=8/9
(1-x)^3=8/27
1-x=2/3
x=1/3^是什么意思x 的n次方的符號x³=0.027x³=0.027 x³=0.3³x=0.3
9x³=8/3 (x-5)³=-125 8x³-3=3/8 3(1-x)³=8/9初二數(shù)學(xué)立方根
9x³=8/3 (x-5)³=-125 8x³-3=3/8 3(1-x)³=8/9初二數(shù)學(xué)立方根
數(shù)學(xué)人氣:751 ℃時(shí)間:2020-03-29 06:26:29
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