log2(4*-x+1)怎么等于log2(4*x+1)-2x

log2(4*-x+1)怎么等于log2(4*x+1)-2x log2(3)×log2(4)=log2(7)?log2(3)×log2(4)=log2(7)吗?log2(1/49)+log2(1/16)+log2(1/27)等于多少呢?帮个忙! log2 4+log2 (x+2)怎么算?log2 4+log2 (x+2)=log2 (4x+8) (log2) ^2 - log5 *log20课本上 等于 （log2）^2 +(1+log2)(1-log2) = 1;（log2）^2 +(1+log2)(1-log2) 是怎么来的? 【x】表示不超过实数x的最大整数,则【log2 1]+[log2 2]+[log2 3]+.+[log2 2012]等于? log2 5 x log2 5等于log2 25还是什么? [log2 1]+[log2 2]+[log2 3]+[log2 4]+[log2 5]+...+[log2 1024]=?[x]表示不超过x的最大整数2为底 答案是8204 解不等式log2(4x+8)>log2(2x+1) 谁能帮我解一下：log2(x + 1) = 4 - log2(x + 1)log2(x + 1) = 4 - log2(x + 1) 怎么解log2^1/4 解方程：log2(x+4)+log2(x-1)=1+log2(x+8) log2^x怎么算 化简：(log2(x/4))*(log2(x/2)) |[log2(x)]^2-3log2(x)+1| log2(x+1)>log2(3-x) log2 (x+1)+log2 x=log6 log2(x+1)=3怎么解 log2(4^x+4)