Globxby101 Globxby101
  • 11-05-2017
  • Mathematics
contestada

1. show your work
4√6 / √30

2. simplify, and show your work
(2√5+3√7) ^2

Respuesta :

corondal corondal
  • 11-05-2017
1. by rationalizing the denominator?

2.
(2sqrt5 + 3sqrt7) * (2sqrt5 + 3sqrt7) 
= 4 * 5 + 6 sqrt35 + 6 sqrt35 + 9 * 7 
= 20 + 63 + 12sqrt35 
= 83 + 12sqrt35
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