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Simplifying (26y4)(1230y)(2\sqrt{6y^4})(12\sqrt{30y}) and (−49a34)(327a24)(-4\sqrt[4]{9a^3})(3\sqrt[4]{27a^2})

Further practice multiplying and simplifying radical expressions involving higher-order roots and variables.

ⓐ (26y4)(1230y)(2\sqrt{6y^4})(12\sqrt{30y}): Multiply the coefficients and radicands: (26y4)(1230y)=24180y5(2\sqrt{6y^4})(12\sqrt{30y}) = 24\sqrt{180y^5} Extract the largest perfect square factor (36y436y^4): 2436y4⋅5y=2436y4⋅5y24\sqrt{36y^4 \cdot 5y} = 24\sqrt{36y^4} \cdot \sqrt{5y} Simplify the perfect square and multiply: 24⋅6y25y=144y25y24 \cdot 6y^2\sqrt{5y} = 144y^2\sqrt{5y}

ⓑ (−49a34)(327a24)(-4\sqrt[4]{9a^3})(3\sqrt[4]{27a^2}): Multiply the coefficients and radicands: (−49a34)(327a24)=−12243a54(-4\sqrt[4]{9a^3})(3\sqrt[4]{27a^2}) = -12\sqrt[4]{243a^5} Extract the largest perfect fourth power factor (81a481a^4): −1281a4⋅3a4=−1281a44⋅3a4-12\sqrt[4]{81a^4 \cdot 3a} = -12\sqrt[4]{81a^4} \cdot \sqrt[4]{3a} Simplify and multiply: −12⋅3a3a4=−36a3a4-12 \cdot 3a\sqrt[4]{3a} = -36a\sqrt[4]{3a}

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Updated 2026-06-05

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Ch.8 Roots and Radicals - Intermediate Algebra @ OpenStax

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