Practice problem
Solve for xxx in 3x2+9x+4=03x^2+ 9x + 4 = 03x2+9x+4=0.
x=−9±1296x=\frac{-9\pm\sqrt{129}}{6}x=6−9±129
x=−9±336x=\frac{-9\pm\sqrt{33}}{6}x=6−9±33
x=9±−1296x=\frac{9\pm\sqrt{-129}}{6}x=69±−129
None of the above
Type a concept, like “slope” or “photosynthesis”.