Question

if a=3+root7 by 2 ,then find the value of a2+1 by a2

Answer 1

Answer:

3(16-3√7)

Step-by-step explanation

Please refer to the picture.

If you simplify the answer in the attachment

You will get 2(42-9√7)/2

Then the answer would be 42-9√7

Then you can take 3 common

3(16-3√7)..

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