Question

решите уравнение |x| - 2 / x - 2 =0​

Answer 1

Объяснение:

D=1-4*1*(-2) = 1+8=9

x1= (1+√9)/2=(1+3)/2=4/2=2

x2=(1=√9)/2=(1-3)/2=-2/2=-1