Simplify Each Radical Expression. Leave in radical form. (Do not use decimals.) 2[√(5)] + 3[√(20)]

asked May 20, 2023 222k views

17 votes

Simplify Each Radical Expression. Leave in radical form. (Do not use decimals.)

2[√(5)] + 3[√(20)]

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$2\sqrt 5 + 3 √(20)\\\\\\=2\sqrt 5 + 3 √(4 * 5)\\\\\\=2\sqrt 5+ 3\cdot 2 \sqrt 5\\\\\\=2\sqrt 5 + 6 \sqrt 5\\\\\\=8\sqrt 5$

Sebster answered May 24, 2023

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