Question

Decomponha os radicando em fatores primos e em seguida, simplifique os radicais a) 8√64 b) 10√625 c) 20√248 d) 14√128

Answer 1

a)
= 8√64
= 8.8
= 64

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b)
= 10√625
= 10.25
= 250

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c)
= 20√248
= 20.√4.√62
= 20.2√62
= 40√62

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d)
 = 14√128
= 14.√64.√2
= 14.8√2
= 112√2
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Obs.:
248: 2
124: 2
62: 2
31: 31
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1   =   2².2.31 = √4.√2.√31 = 2√62