解方程:2.5x×2.5x×1.6x=7290解方程:2.5x×2.5x×1.6x=7290

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解方程:2.5x×2.5x×1.6x=7290解方程:2.5x×2.5x×1.6x=7290
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解方程:2.5x×2.5x×1.6x=7290解方程:2.5x×2.5x×1.6x=7290
解方程:2.5x×2.5x×1.6x=7290
解方程:
2.5x×2.5x×1.6x=7290

解方程:2.5x×2.5x×1.6x=7290解方程:2.5x×2.5x×1.6x=7290
解方程:
2.5x×2.5x×1.6x=7290
x^3=7290/(2.5*2.5*1.6)
x^3=7290/10
x^3=729
x=9

2.5x×2.5x×1.6x=7290
10x^3=7290
x^3=729
x=9

麻烦

10x^3=7290
x^3=729
x=9