1.

$$ ({2+ sqrt{5}})$$ and $$ ({2- sqrt{5}})$$ is a quadratic equation with roots.

A. $$ {x^{2}-3x-4=0}$$
B. $$ {x^{2}+3x-4=0}$$
C. $$ {x^{2}-3x+4=0}$$
D. $$ {x^{2}+3x+4=0}$$
Answer» B. $$ {x^{2}+3x-4=0}$$


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