12,25-3x^2=6x^2 помогите решить!!!!!!!!!

12.25-3x^2=6x^2 -3x^2-6x^2=-12.25 -9x^2=-12.25 x^2=[latex] \frac{49}{36} [/latex] x=+-[latex] \frac{7}{6} [/latex]

12,25-3x^2=6x^2  (1225/100)-3x^2=6x^2 (49/4)-3x^2=6x^2 -3x^2-6x^2=-(49/4) -9x^2=-(49/4) x^2=(49/36) x=+-(7/6) x₁=7/6 x₂=-(7/6)