)))))))))))))))))))))))))))))))
(x^2 + 3) ( x - 7) = 0
x^2 = - 3 ==> нет реш
x - 7 = 0 ==> x = 7
(3y - 1) (y^2 + 1) = 0
3y - 1 = 0 ==> 3y = 1 ==> y = 1/3
y^2 = - 1 ==> нет реш
(z - 1)^2 (z + 4) = 0
z - 1 = 0 ==> z = 1
z + 4 = 0 ==> z = - 4
(3t + 12) (t + 2)^2 = 0
3t + 12 = 0 ==> 3t = - 12 ==> t = - 4;
t + 2 = 0 ==> t = - 2
((8+6-10)*х-2):(х4-2)=(4х-2):(4х-2)=1
3x² - 48 = 0
3x² = 48 | :3
x² = 16
x = ±4
10(из России) - 1(Руслан) = 9
26(Всего) - 1(Руслан) = 25
P = 9/25 = 0,36