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Equation of the common tangent to the ci...

Equation of the common tangent to the circle `x^(2)+y^(2)=50` and the parabola `y^(2)=40x` can be

A

`2x- sqrt 5 y - 20=`

B

`2x- sqrt 5 y +4=`

C

`x^2 + y^2 + 24 x -12=0`

D

`x^2 + y^2 - 24 x -12=0`

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