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# If 2 + i sqrt3 is a root of the equation x^2 + px + q = 0,

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If 2 + i sqrt3 is a root of the equation x^2 + px + q = 0, [#permalink]  01 Mar 2004, 15:12
If 2 + i sqrt3 is a root of the equation x^2 + px + q = 0, where p and q are real, then (p,q) is?

4,7
4,-7
-4,7
-4,-7

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Senior Manager
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[#permalink]  01 Mar 2004, 17:48
C........(-4,7)............!!
Plug in value of root in the eqn and then equate real and imaginary parts to get 2 equations.........Solve for p & q!!
[#permalink] 01 Mar 2004, 17:48
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# If 2 + i sqrt3 is a root of the equation x^2 + px + q = 0,

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