Question

(10x)la puterea lgx+4=0,01

Answer 1

$(10x)^{lgx+4} =0.01$

$(lgx+4)(lg(10x))=-2$

$(lgx+4)(lg10+lgx)=-2$

$(lgx+4)(1+lgx)=-2$

$lgx+ lg^{2} x+4+4lgx=-2$

$lg^{2} x+5lgx+6=0$

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