Simplify these ..working with polynomials
(3x^2-2x++5x-5)

and

(4x-3+2x^2)+(2x+1)

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!