Нужно завтра к контрольной! ПОМОГИТЕ! 100[tex]100^{lg^{2}x} - 8x^{lgx} = 20[/tex]
lg x = a
a^2 -8a=20
a^2 -8a-20=0
a = -2 a= 10
x = 0.01 x = 10^10
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lg x = a
a^2 -8a=20
a^2 -8a-20=0
a = -2 a= 10
x = 0.01 x = 10^10