2х-х2+(3+х)(х-3)-19=0

Question

2х-х2+(3+х)(х-3)-19=0

Answer 1

1) 2х-х2+(3+х)*(х-3)-19=0
2х-х2+3х-9+х2-3х-19=0
2х-28=0
2х=28
х=28:2
х=14.

Answer 2

X=14..........................