resolve the log, exactly, log x+ log 2x+ log 3x+ log4x=5?
2007-10-29 5:53 am
im terrible in math and i can not find the answer..i tried to use the property that says that Log a u(w)= Log a (u)+ Log a (w), but the result is Log24x^4=5 and i still get to reslove for X exactly without the use of calculator and also it does not seem right
回答 (3)
2007-10-29 6:00 am
✔ 最佳答案
5=log(x*2x*3x*4x)5=log(24x^4)
10^5=24x^4
4166.6666=x^4
x=8.034
2007-10-29 1:04 pm
......log(X x 2X x 3X x 4X)=log5
24X^4=5
X^4=5/24
X=0.6756
24X^4=5
X^4=5/24
X=0.6756
2007-10-29 1:02 pm
Log24x^4=5
24x^4=100^5
24x^4=100,000
x^4=100,000/24
x=4th root of 100,000/24
x=8.03
24x^4=100^5
24x^4=100,000
x^4=100,000/24
x=4th root of 100,000/24
x=8.03
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