Express 5 log7 x − 2 log7 y + log7 xy as a single logarithm
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Answer from Sia
Posted 10 months ago
Solution by Steps
step 1
Use the properties of logarithms to combine terms: 5log7(x)−2log7(y)+log7(xy) can be rewritten using the power rule and product rule for logarithms
step 2
Apply the power rule: 5log7(x) becomes log7(x5) and −2log7(y) becomes −log7(y2)
step 3
Apply the product rule: log7(x5)+log7(xy) becomes log7(x5⋅xy)
step 4
Combine the terms: log7(x5⋅xy)−log7(y2) becomes log7(y2x5⋅xy)
step 5
Simplify the expression: log7(y2x5⋅xy) simplifies to log7(yx6)
Answer
log7(yx6)
Key Concept
Logarithm Properties
Explanation
The power rule for logarithms states that alogb(c)=logb(ca), and the product rule states that logb(c)+logb(d)=logb(cd). These properties are used to combine multiple logarithmic terms into a single logarithm.
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