Respuesta :

Answer:

This is a tricky question.

You can pull the fraction apart but with caution.

-21/3 + (±[tex]b^{2}[/tex] - 4ac)/3

Ignore the A in the equation below, it's a bug.

[tex]\frac{-21}{3} + \frac{±b^2 - 4ac}{3}[/tex]