log10(8)-2log10(√2)+log10(25)=?麻烦写出步骤

log10(8)-2log10(√2)+log10(25)=?麻烦写出步骤 log10 4-log10 5+2log10 √125麻烦写出过程 log10(55)/log10(2)怎么算?疯了都算不出5. (log10^e)^2等于什么（log10,10是底数） log10∧2等于多少? log10(x^3) + log10(y^2) = 11 log10(x^2) + log10(y^3) = 3 求解方程组. 为什么：2log10∧x+1会等于log10∧(x∧2)+log10∧10 log10是多少是2-1吗？ log10 x=-2 求x值 [log10（67.8）-2]等于好多啊 log10(x-15)+log10x=2 matlab中log10[(10.^(2/10)-1)/(10.^2-1)]/log10(5/12)怎么出错 求log10 55 /log10 2=5.78为什么是怎么算的?谢谢了 已知log10 2=a,log10 3=b,试用a、b表示log12 5 a=log10^2/2,b=log10^3/3,c=log10^5/5则a,b,c的关系 y=log10(x^3+2x^2+x) 求导 log10∧3除以log3∧2等于 log10 (3x+2)=3 求x