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Quantitative Aptitude :: Simplification - Discussion

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Choose the correct option.

In this question A^B means A raised to the power B. If f(x) = ax^4 - bx^2 + x + 5 and f(-3) = 2, then f(3) =

A1

B-2

C3

D8

Answer: Option (Login/Signup)

Show Explanation

Putting the value of x= -3 in equation ax^4 - bx^2 + x + 5=2 we get 81a=9b



Now putting the values of x=3 again in equation



ax^4 - bx^2 + x + 5



81a-9b + 3 + 5



9b-9b + 3 + 5=8  therefore the answer is 8.

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