(x + 2)2 + 5 = 6x(x-1)
x2+ 4 + 5 = 6x2 - 6x
x2 + 7 - 6x2 + 6x = 0
7x2 + 7 - 6x2 = 0
- 6x2 + 7х2 + 7 = 0 * -1
6x2 +-7x2 - 7 = 0
a= 6. b= -7.C= -7
-6x2+8x+9=0
a = -6 b = 8 c = 9
Объяснение:
(x + 2)2 + 5 = 6x(x-1)
x2+ 4 + 5 = 6x2 - 6x
x2 + 7 - 6x2 + 6x = 0
7x2 + 7 - 6x2 = 0
- 6x2 + 7х2 + 7 = 0 * -1
6x2 +-7x2 - 7 = 0
a= 6. b= -7.C= -7
-6x2+8x+9=0
a = -6 b = 8 c = 9
Объяснение: