-20 + 4x = -6x
x = 5
x = -5
x = 2
x = -2

x=2

Step-by-step explanation:

Hint use m a t h w a y. Its a algebra problem solver.

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!