Q. Write the expression below as a single logarithm in simplest form.5logb2−logb4Answer: logb(□)
Recognize Properties: Recognize the properties of logarithms that can be applied.The expression given is a combination of two logarithms with the same base that are being subtracted. We can use the power property of logarithms to rewrite the first term and the quotient property to combine the terms into a single logarithm.
Apply Power Property: Apply the power property to the first term.The power property of logarithms states that logb(an)=n⋅logb(a). We can apply this property to the first term to rewrite 5logb2 as logb(25).Calculation: 25=32
Combine Using Quotient Property: Combine the two logarithms using the quotient property.The quotient property of logarithms states that logb(a)−logb(c)=logb(ca). We can apply this property to combine logb(32) and logb(4) into a single logarithm.Calculation: logb(432)
Simplify Inside Logarithm: Simplify the expression inside the logarithm.We need to divide 32 by 4 to simplify the expression inside the logarithm.Calculation: 32/4=8
Write Final Answer: Write the final answer.The expression 5logb2−logb4 can be written as a single logarithm as logb(8).
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