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nlexa [21]
3 years ago
15

Use the prime decomposition of integers to express the listed radical in its minimal expression. Do not use decimals.

Mathematics
1 answer:
kirza4 [7]3 years ago
8 0

Answer:

(A) 210\sqrt{5

(B) 210\sqrt{14}

(C) 1980\sqrt{33}

(D) 37\sqrt{5}

Step-by-step explanation:

\sqrt{220500} = \sqrt{2^2*3^2*5^2*7^2*5} = 2*3*5*7\sqrt{5} =210\sqrt{5

3\sqrt{68600} = \sqrt{2^2*2*5^2*7^2*7} = 3*2*5*7\sqrt{14} =210\sqrt{14}

3\sqrt{3267}\sqrt{4400} = 3\sqrt{3^2*3*11^2}\sqrt{2^2*2^2*5^2~11} = 3*3*11\sqrt{3}*2*2*5\sqrt{11} =1980\sqrt{33}

\sqrt{1125} + \sqrt{2420} = \sqrt{3^2*5^2*5} + \sqrt{2^2*11^2*5} = 3*5\sqrt{5} + 2*11\sqrt{5} =15\sqrt{5} + 22\sqrt{5} = 37\sqrt{5}

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