What are the solutions to the equation 4/x^2 +9/x =-2?

Question

dumbcow · Answer

multiply everything by x^2

--> 4 +9x = -2x^2

solomonzelman · Answer

$\normalsize\color{blue}{ \rm   4/x^2 +9/x =-2   }$  mutliply everything time x²

anonymous · Answer

now same steps as per privious questin..use quadratic formula.

solomonzelman · Answer

you beat me to it, dumbcow:)

anonymous · Answer

Can you help me with this other problem @SolomonZelman ? please

solomonzelman · Answer

$\normalsize\color{blue}{ \rm   4/x^2 +9/x =-2   }$

you get   $\normalsize\color{blue}{ \rm   4 +9x =-2x^2   }$  after multiplying everything times x².

solomonzelman · Answer

add 2x² to both sides, and solve the quadratic.

$\normalsize\color{blue}{ \rm   2x^2+4 +9x =0   }$

anonymous · Answer

A baseball player hits the ball into the air. The height h of the baseball can be modeled approximately with the equation h= -0.0004x^2 +0.15x +4, where x is the horizontal distance from home plate. How far away from home plate did the baseball land? @SolomonZelman  or @zaibali.qasmi