x⁴-x²=0
x²(x²-1)=0
x²(x-1)(x+1)=0
x=0 ∧ x=1 ∧ x=-1
Odp.: x=0 ∧ x=1 ∧ x=-1
Pozdrawiam :)
x^4 - x^2 = 0
x^2(x^2 - 1) = 0
x^2(x - 1)(x + 1) = 0
x^2 = 0 lub x - 1 = 0 lub x + 1 = 0
x = 0 lub x = 1 lub x = -1
