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Brycen Chase
Mathematics
31 August, 23:15
Simplify log (x2-y2) - log (x-y) =
+3
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Maliyah Butler
31 August, 23:22
0
Using the law of logarithm. LogA - LogB = Log (A/B)
log (x²-y²) - log (x-y) = log ((x²-y²) / (x-y))
Note by difference of two squares, (x²-y²) = (x-y) (x+y)
Simplifying (x²-y²) / (x-y) = (x-y) (x+y) / (x-y) = (x+y)
Therefore log (x²-y²) - log (x-y) = log ((x²-y²) / (x-y)) = log ((x-y) (x+y) / (x-y)) = log (x+y)
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Dale
31 August, 23:30
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Remember:
log A - log B=log (A/B)
(a ²-b²) = (a+b) (a-b).
Therefore
log (x²-y²) - log (x-y) = log[ (x²-y²) / (x-y) ] = log[ (x+y) (x-y) / (x-y) ]=log (x+y)
Answer: log (x²-y²) - log (x-y) = log (x+y)
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