Solving Exponential Equations Using Logs

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What is an exponential equation?

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What is the logarithm of a number?

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CCSS.HSF.BF.B.5

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How do you solve an exponential equation using logarithms?

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What is the change of base formula for logarithms?

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What is the natural logarithm?

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What is the common logarithm?

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How do you round a number to two decimal places?

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To round a number to two decimal places, look at the third decimal place. If it is 5 or greater, round up the second decimal place by one. If it is less than 5, keep the second decimal place the same.

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CCSS.5.NBT.A.4

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x = -2.54.

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CCSS.HSF.LE.A.4

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x = -1.42.

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CCSS.HSF.LE.A.4

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This property is known as the product property of logarithms.