Respuesta :

Answer:

Step-by-step explanation:

6root = 6^2= 6 x 6

= 36

6root7 = 36 x 7 = 252

Also,

5xroot7 = 5 x 7^7

= 5 x 49

= 245

Therefore,

6root7 - 5xroot7 - Xroot7 = 0

252 - 245 - 7x^2

= 7- 7x^2

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