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Log(x-1) + log(2x-3) = 1?

0 votes

Log(x-1) + log(2x-3) = 1?

asked Feb 13, 2015 in ALGEBRA 2 by anonymous

1 Answer

0 votes

Step 1:

The logarithmic equation is image.

Apply product rule in logarithms : image.

image

image

image

image

Cancel log on each side.

image.

Step 2:

Solve the equation image by factorization.

image

Apply zero product property.

image and image

image and image

image and image

Logarthim of a negative number is not possible, so consider image.

Solution:

image.

answered Feb 16, 2015 by david Expert
edited Feb 16, 2015 by david

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