Respuesta :

24mhomme

Answer:

you would have to use repletion

Step-by-step explanation:

2x^2+5x+7=20

             -7     -7

2x^2+5x=13

         /5    /5

2x^2+x=2.6

4+2x=2.6

-4      -4

2x=-1.4

/2     /2

x=-0.7

baenessa24
You’d use the quadratic formula:
X= -b +- √b^2-4ac
———————-
2a

And I attached your final answers
Ver imagen baenessa24