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I want to know the every step and how to solve it I was absent that day and I didn’t understand anything that the teacher teaches us please help!

I want to know the every step and how to solve it I was absent that day and I didn-example-1
User Memtha
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1 Answer

22 votes
22 votes

We want to write the following log equation:


\ln (4x+8)=x+5

As an exponential equation.

For this, we could elevate both sides of the equation with the base e. (Euler's number). This is:


e^(\ln (4x+8))=e^((x+5))

There's something important we have to notice, and it is the fact that:


e^(ln(x))=x

That's a logarithm property. So, if we apply it to our equation:


4x+8=e^((x+5))

And that's the exponential equation.

User NikGreen
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