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Warren Hamilton
Mathematics
6 January, 18:02
What is - 2√20-√125 in simplest radical form
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Timber
6 January, 18:07
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√20 the prime factors are 2, 2, 5 so
-2 * √4 * √5
-2*2*√5
-4√5 is the first part,
now for √125, use prime factorization,
all prime factors that make up 125 is
5, 5, 5 so √125 can be separated to √25√5 and √25 = 5 so the second part is 5√5.
now - 4√5 - 5√5 = - 9√5.
therefore answer is - 9√5
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