What is the positive value of $$\(x\)$$ that satisfies $$\(x^{400}=9^{1000}\)$$ ?
A.
27
B.
81
C.
243
D.
729
Exam No：2022 First Round Grade 7 Year：2022 Question No：29
Answer:
C
Knowledge points:
G7 - Algebra - Exponent Properties (Factoring & Basic Rules)
Solution:
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