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解方程：log2(x²-3)=2log4(6x-10)-1
人气：461 ℃　时间：2020-05-19 13:44:02
解答
log2(x²-3)=2log4(6x-10)-1log2(x²-3)=2lg(6x-10)/lg4-1log2(x²-3)=2lg(6x-10)/2lg2-1log2(x²-3)=lg(6x-10)/lg2-1log2(x²-3)=log2(6x-10)-log2(2)log2(x²-3)=log2[(6x-10)/2]x²-...
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