vijay31679 vijay31679
  • 18-08-2018
  • Mathematics
contestada

Simplify 1)  root 45 - 3 root 20 +4 Root 5 plzz write the sum

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kevinsanjula02pdk18m
kevinsanjula02pdk18m kevinsanjula02pdk18m
  • 18-08-2018
= root 45 - 3 root 20 + 4 root 5
= root 9 * root 5 - 3 * root 4 * root 5 + 4 root 5
=3 root 5 - 3 * 2 * root 5 + 4 root 5
= root 5 ( 3 - 6 + 4 )
= root 5 *1
= root 5
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