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(21x⁵· y⁸)² divided by 3x²
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\cfrac{(21x^5y^8)^2}{3x^2}\implies \cfrac{((3)(7)x^5y^8)^2}{3x^2}\implies \cfrac{3^2\cdot 7^2x^(5\cdot 2)y^(8\cdot 2)}{3x^2}\implies \cfrac{3^2}{3}\cdot \cfrac{7^2 x^(10) y^(16)}{x^2} \\\\\\ 3\cdot 7^2 x^(10)\cdot x^(-2) y^(16)\implies 3\cdot 49x^(10-2)y^(16)\implies 147x^8y^(16)

User Undeniablyrob
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