Solve and explain this i will give 20 points to you.
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A simple method
x⁴ - 81 = 0
x⁴ = 81
x² × x² = 81
x² = 9
x = 3 .
Answered by
0
Answer:
x=3
Step-by-step explanation:
x4-81
4 square root sign x - 4 square root sign 81
x-3 ans
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