Объяснение:
(3s+4)²=36
1) 3s+4=6
3s= 2
s1= 2/3
2) 3s+4= -6
3s= -10
s2= -3 1/3
-4(9s^2+24s+16)=-144
-36s^2-96s+80=0
x1=-10/3 x2=2/3
Объяснение:
(3s+4)²=36
1) 3s+4=6
3s= 2
s1= 2/3
2) 3s+4= -6
3s= -10
s2= -3 1/3
-4(9s^2+24s+16)=-144
-36s^2-96s+80=0
x1=-10/3 x2=2/3