Решите уравнения  а)(х-1)^2(х+2)=0 б)х^2-1)(x-3)=0 d)(x-4)^2(x-3)=0 u) (x^2-4)(x+1)=0

(x - 1)^2( x + 2) = 0
x - 1 = 0
x = 1
x + 2 = 0
x = - 2

(x^2 - 1)(x - 3) =0
( x - 1)(x + 1)( x - 3) = 0
x - 1 = 0
x = 1
x + 1 = 0
x = - 1
x - 3 = 0
x = 3

(x - 4)^2(x - 3) = 0
x - 4 = 0
x = 4
x - 3 = 0
x = 3

(x^2 - 4)(x + 1) = 0
( x - 2)(x + 2)(x + 1) =0
x - 2 = 0
x = 2
x + 2 = 0
x = - 2
x + 1 = 0
x = - 1