1.

2. Let us simplify:2

Answer»

(8a*a*a ÷ 27(1/x)(1/x)(1/x))^(2/3) × (64a*a*a ÷ 27(1/x)(1/x)(1/x))^(-2/3) = (2a×2a×2a×x×x×x÷(3×3×3))^(2/3) × (4a×4a×4a×x×x×x÷(3×3×3))^(-2/3) = (2a×x÷3)(2a×x÷3) ÷ (4a×x÷3)(4a×x÷3) = (4a*a*x*x ÷ 9) ÷ (16a*a*x*x ÷ 9) = 1/4

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