(9-х2)(2х-1)(х+1)=0 решите

Question

(9-х2)(2х-1)(х+1)=0 решите

Answer 1

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

(9-x^2)=0 ; x = +-3

(2x-1)=0 ; x = 0.5(1/2)

(x+1) = 0 x = -1