Question

Solve and explain this i will give 20 points to you.​

Answer 1

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A simple method

x⁴ - 81 = 0

x⁴ = 81

x² × x² = 81

x² = 9

x = 3 .

Answer 2

Answer:

x=3

Step-by-step explanation:

x4-81

4 square root sign x - 4 square root sign 81

x-3 ans