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(3/5x^3)的3次方等於負125分之27乘X的9次方
x³=-1/27移項,得x³+1/27=0即x³+(1/3)³=0根據立方和公式,得(x+⅓)(x²-⅓x+1/9)=0∴x+⅓=0或x²-⅓x+1/9=0∵x²-⅓x+1/9=(x-1/6)²+1/12>0解得∴x=-&…
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