Question

Решите уравнение
4х^4-16х^2=0

Answer 1

$4x^4-16x^2=0\4x^2(x^2-4)=0\4x^2=0 x^2-4=0\x=0 x^2=4\x=0 |x|=2\x=0 x=2; x=-2$

Ответ: x=0; x=2; x=-2