Question

Решите уравнение 
(13 − х^2) ∙ (5х^2 + 3х) = 0

Answer 1

(13 − х^2) ∙ (5х^2 + 3х) = 0
13-x^2=0
x^2=13
x=√13
x=-√13
5x^2+3x=0
x(5x+3)=0
x=0
x=-3/5