Question

Решите уравнение

 

(3х+2)^2=10+3(х-2)(х+2)

 

Answer 1

(3x+2)^2=10+3(x-2)(x+2)

9x^2+12x-6-3x^2+12=0

6x^2+12x+6=0

D=12^2-4*6*6=144-144=0

x=-12/(2*6)=-12/12=-1