Question

find 'a' and 'b' if (8+2√5)/(9+3√5)= a+b√5​

Answer 1

Answer:

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Answer 2

Answer:

L.H.S

(8+2√5)(9+3√5)

==> 72 + 24√5 + 18√5 + 6(5)

==> 72 + 30 + 42√5

==> 102 + 42√5

==> 2(51+21√5)

==> 51 + 21√5

answer ===> a = 102 or 51

and b= 42 or 21