edmondsdeven4363
contestada

To rationalize the denominator of
[tex]5 - \sqrt{7} \div 9 - \sqrt{14} [/tex]
, you should multiply the expression by which fraction?
Answer choices:
[tex]5 + \sqrt{7} \div 9 - \sqrt{14} [/tex]
[tex]9 - \sqrt{14} \div 9 - \sqrt{14} [/tex]
[tex]9 + \sqrt{14} \div 9 + \sqrt{14} [/tex]
[tex]\sqrt{14} \div \sqrt{14} [/tex]
​

Respuesta :

sreedevi102

Answer:

option 3

Step-by-step explanation:

[tex]\frac{5- \sqrt{7} }{9-\sqrt{14} } = \frac{5- \sqrt{7} }{9-\sqrt{14} } \times \frac{9 + \sqrt{14} }{9 +\sqrt{14} }[/tex]

       

To rationalize the denominator choose the denominator and change the sign of the operation.

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