Practice problem
Solve for xxx in x2+4x=7\frac{x^2+4}{x}=7xx2+4=7.
x=7±332x=\frac{7\pm\sqrt{33}}{2}x=27±33
x=7±338x=\frac{7\pm\sqrt{33}}{8}x=87±33
x=−7±332x=\frac{-7\pm\sqrt{33}}{2}x=2−7±33
None of the above
Type a concept, like “slope” or “photosynthesis”.