Log2 + log(4x-1) = 3

Answers

Answer 1

Answer: remember
logx+logy=log(xy) so
log2+log(4x-1)=log2(4x-1)=log8x-1
since no base is mentioned, it it base 10

now we have
log 8x-2, base 10=3
means
10 must be raised to the 3rd power to get 8x-2
therfor
10^3=8x-2
1000=8x-2
1002=8x
divide 8 both sides
125.25=x

x=125.25

Answer 2

Answer: 10^2.7=4x-1
(10^2.7+1)/4=x
x=125.55

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Answers

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