Log 1/81(x2+26)=0,75 Кто поможет

log₁/₈₁([latex] x^{2} [/latex]+26)=0,75 log₍₉⁻²₎([latex] x^{2} [/latex]+26)=0,75 log₍₃⁻⁴₎([latex] x^{2} [/latex]+26)=0,75 -1/4log₃([latex] x^{2} [/latex]+26)=0,75 -1/4log₃(x^2+26)=[latex] \frac{3}{4} [/latex] log₃(x^2+26)=[latex] \frac{3}{4} [/latex]/[latex] \frac{-1}{4} [/latex]=-3 dal`she sam(a) :)