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Expand and Condense Log Expressions

Authored by Robert Mierow

Mathematics

9th - 12th Grade

Used 58+ times

Expand and Condense Log Expressions
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which shows the log expression completely expanded correctly

log⁡4(a2b5)\log_4\left(a^2b^5\right)

2log⁡4(a)+5log⁡4(b)2\log_4\left(a\right)+5\log_4\left(b\right)

log⁡4(2a)+log⁡4(5b)\log_4\left(2a\right)+\log_4\left(5b\right)

alog⁡4(2)+blog⁡4(5)a\log_4\left(2\right)+b\log_4\left(5\right)

log⁡(4)+2log⁡(a)+5log⁡(b)\log\left(4\right)+2\log\left(a\right)+5\log\left(b\right)

None of these

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which shows the log expression completely expanded correctly

log⁡4(a2+b5)\log_4\left(a^2+b^5\right)

2log⁡4(a)+5log⁡4(b)2\log_4\left(a\right)+5\log_4\left(b\right)

2log⁡4(a)⋅5log⁡4(b)2\log_4\left(a\right)\cdot5\log_4\left(b\right)

log⁡4(2a)+log⁡4(5b)\log_4\left(2a\right)+\log_4\left(5b\right)

log⁡4(2a)⋅log⁡4(5b)\log_4\left(2a\right)\cdot\log_4\left(5b\right)

None of these

3.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

When writing the expanded log expression of log⁡7(5m4r)\log_7\left(\frac{5m^4}{\sqrt[]{r}}\right) , how many times would "log" be written?

(a)  

4.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

When writing the condensed log expression of log⁡7(4)+3log⁡7(n)−2log⁡7(b)−log⁡7(g)\log_7\left(4\right)+3\log_7\left(n\right)-2\log_7\left(b\right)-\log_7\left(g\right) , how many times would "log" be written?

(a)  

5.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

When writing the condensed log expression of 2log⁡5(x)+4log⁡8(d)2\log_5\left(x\right)+4\log_8\left(d\right) , how many times would "log" be written?

(a)  

6.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Expand the log expression log⁡(4k5d)\log\left(\frac{4k}{5d}\right)

(Don't type any spaces in your answer)

Remember to put your log argument in parenthesis

To type exponents use ^. For example x2x^2 would be typed as x^2

use / to indicate a fraction. For example 2x5y\frac{2x}{5y} ​ would be typed as 2x/5y

(a)  

7.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Expand the log expression log⁡(j7n3)\log\left(\frac{j^7}{n^3}\right)

(Don't type any spaces in your answer)

Remember to put your log argument in parenthesis

To type exponents use ^. For example x2x^2 would be typed as x^2

use / to indicate a fraction. For example 2x5y\frac{2x}{5y} would be typed as 2x/5y

(a)  

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