If a+b = p and ab = pq then find the val...

If a+b = p and ab = pq then find the value of `a^4 + b^4`

A

`p^4 + 2p^2q^2-4p^3q`

B

`p^4 -2p^2q^2-4p^3`

C

`p^4 + 2p^2q^2 + 4p^3`

D

`p^4 - 2q^2q^2 + 4p^3`

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The correct Answer is:

A

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