Question

Please answer as soon as possible.

Answer 1

Answer:

9y^2-6b^2y -( a^4-b^4) =0

by using shri dharacharya formula

minus b plus minus √ b square minus 4 ac divided by 2a

put the value in formula

+6b^2 plus minus √36 b^2 +36 a^2-36 b^2/18

6b^2 plus minus 6a^2/18

b^2 plus minus a^2 /3

hence, a part is the correct answer of this ques