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A) x³ + 75 = 200 x³ = 200 - 75 x³ = 125 x = ³√125 x = 5 Rpta : 5 b)(x + 2)² = 81 x + 2 = √81 x + 2 = 9 x = 9 - 2 x = 7 Rpta : 7 c)√x - 3 = 6 x - 3 = 6² x - 3 = 36 x = 36 + 3 x = 39 Rpta : 39.

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Jona23
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A) x³ + 75 = 200 x³ = 200 - 75 x³ = 125 x = ³√125 x = 5

Rpta : 5

b)(x + 2)² = 81 x + 2 = √81 x + 2 = 9 x = 9 - 2 x = 7

Rpta : 7

c)√x - 3 = 6 x - 3 = 6² x - 3 = 36 x = 36 + 3 x = 39

Rpta : 39.