Q. Solve for the exact value of x.log5(5x)+log5(2)=0Answer:
Apply Product Rule: Use the property of logarithms that allows us to combine the two logarithms into one by using the product rule.The product rule states that logb(m)+logb(n)=logb(m∗n) for any base b.So, log5(5x)+log5(2)=log5(5x∗2).
Simplify Expression: Simplify the expression inside the logarithm.5x×2 simplifies to 10x.So, log5(5x)+log5(2)=log5(10x).
Set Equal to Zero: Set the logarithmic expression equal to zero, as given in the equation. log5(10x)=0.
Convert to Exponential Form: Convert the logarithmic equation to its exponential form.The exponential form of logb(a)=c is bc=a.So, 50=10x.
Solve for x: Solve for x.50 is equal to 1, so 1=10x.Divide both sides by 10 to isolate x.x=101.