Question

9. Let a, b are two different positive integers and the two quadratic equations(a - 1)x2 - (a^2 + 2)x + (a^2+ 2a) = 0 and (b - 1)x2 - (b^2 + 2)x + (b^2 + 2b) = 0 haveone common root. Then the value of(a^b+b^a)/(a^-b+b^-a)is equal to(B) 64(A) 256(C) 16(D) 72 pls solve it by the earliest ​

Answer 1

Answer:

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