a) x^2 - 2x - x + 2 + x^2 - 9 + 3x + 18 = 0
2x^2 + 0 +11 =0
б ) 6х - 10 - 25 + 30x =0
36x - 35 = 0
36x = 35
x = 35/36
a) x^2 - 2x - x + 2 + x^2 - 9 + 3x + 18 = 0
2x^2 + 0 +11 =0
б ) 6х - 10 - 25 + 30x =0
36x - 35 = 0
36x = 35
x = 35/36