Properties of Logarithms

When you have two log expressions separated by a minus sign (-), we really need to ___________ them to simplify into one log expression.

• add

• subtract

• multiply

• divide

When you have a log expression with a number in front of it, we really need to ___________ .

• make the number an exponent at the end of the log expression.

• multiply it with the log expression.

• add it to the log expression.

• subtract it from the log expression.

When you have two log expressions separated by a plus sign (+), we really need to ___________ them to simplify into one log expression.

• add

• subtract

• multiply

• divide

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81
• log₈₁3 = 4
• log₃81 = 4
• log₄81 = 3

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CCSS.HSF.BF.B.5