Asked by Sara
log4+log(x-7)=2
Answers
Answered by
bobpursley
remember loga-logb=log(a/b)
Do that, then take the antilog of each side, solve for x
the antilog of 2 is 100, as in 10^2=100
Do that, then take the antilog of each side, solve for x
the antilog of 2 is 100, as in 10^2=100
Answered by
Sara
But the question above is loga+logb=loga*b
Answered by
bobpursley
same principle
log(4(x-7))=2
4(x-7)=100
solve for x.
log(4(x-7))=2
4(x-7)=100
solve for x.
Answered by
Sara
Okay, thanks :)
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