lg2+lg50+3^1-log9(2)

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lg2+lg50+3^1-log9(2)lg2+lg50+3^1-log9(2)lg2+lg50+3^1-log9(2)lg2+lg50+3^1-log9(2)=lg100+3^(log9(9)-lo

lg2+lg50+3^1-log9(2)
lg2+lg50+3^1-log9(2)

lg2+lg50+3^1-log9(2)
lg2+lg50+3^1-log9(2)=lg100+3^(log9(9)-log9(2))=2+3^(log9(9/2))=2+3^(log(3^2)(9/2))=2+3^(1/2log(3)(9/2))=2+3^(log(3)(9/2)^1/2)=2+(9/2)^(1/2),are you clear?