Question

решите уравнение 1/4х2+1/2х=1/6х2+9/4

Answer 1

1/4х²+1/2х=1/6х²+9/4

1/4х²-1/6х²+1/2х-9/4=0

3/12х²- 2/12х²+1/2х-9/4=0

1/12х²+1/2х-9/4=0   /*12

х²+6х-27=0

Д=36+104=144

х₁=-6-12/2=-9

х₂=-6+12/2=3