Question

Fan and Medal

Solve.



x^2 + x – 6 = 0









A.

{3, –2}








B.

{6, –1}








C.

{2, –3}








D.
{2, 3}

Answer 1

use quadratic formula

Answer 2

\[\frac{ -1 \pm \sqrt{1-(-24)} }{ 2 }=\frac{ -1 \pm 5 }{ 2 }=2,-3\]

Answer 3

option C