По условию х²у³ = -7/5 = -1,4
тогда: 5x⁴y⁶ = 5(x²y³)² = 5(-1,4)² = 5 · 1,96 = 9,8
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По условию х²у³ = -7/5 = -1,4
тогда: 5x⁴y⁶ = 5(x²y³)² = 5(-1,4)² = 5 · 1,96 = 9,8