What is the value of the following expression: 2 log10 5 + log10 4 ?

• 2log10 5 + log10 4
  2log10 5 + log10 2^2
  2log10 5 + 2log10 2
  2(log10 5 + log10 2)
  2(log10 (5*2))
  2(log10 10)
  2(1)
  2
  so 2 is ans.........
• 12 years agoHelpfull: Yes(33) No(2)
• Ans:- =2log10 5+log10 4
  =log10 25+log10 4
  =log10(25*4)
  =log10 10^2
  =2 becoz log10 10 =1
  
• 12 years agoHelpfull: Yes(9) No(5)
• =2log10 5+log10 4
  =2log10 5+2log10 2
  =5+2=7
  
• 12 years agoHelpfull: Yes(1) No(28)
• 2
  5^2 *4=100 base 10 =2
• 9 years agoHelpfull: Yes(1) No(0)