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(4+sqrt(7)) expressed as a perfect squar...

`(4+sqrt(7))` expressed as a perfect square, is equal to `(2+sqrt(7))^2` b. `((sqrt(7))/2+1/2)^2` c. `(sqrt(3)+sqrt(4))^2` d. `{1/2\ (sqrt(7)+1)^2}\ `

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