Question

1/3х+1-1/9хво 2 степени +6+1=2

Answer 1

1/3х+1-1/9х²+6+1=2,

-1/9х²+1/3х+6=0,

D = b² - 4ac = 25,   D > 0 => Уравнение имеет 2 вещественных решения ,
√D = 5

x ₁ = -b + √D/2а = -1 + 5/ 2 × (-1/9)=-2,

 

x₂ = -b - √D/2а = -1 - 5/ 2 × (-1/9)=3