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Mathematics 24 Online
OpenStudy (anonymous):

simplify 12a^3b^2 divided by 4ab-2

OpenStudy (anonymous):

show all working out

OpenStudy (anonymous):

Is it 4ab-2 or 4ab^-2 ??

OpenStudy (anonymous):

4ab^-2

OpenStudy (anonymous):

The answer is 3a^2b^4 The working is as below :

OpenStudy (anonymous):

\[12a ^{3}b ^{2}\] 12 ---------------- = ---- x \[a ^{3-1} x b ^{2- (-2)}\] \[4ab ^{-2}\] 4

OpenStudy (anonymous):

Sorry it didn't come out right!! Ill do it again We will use the Law \[a ^{m} \div a ^{n} = a ^{m-n}\]

OpenStudy (anonymous):

thank you so much for all your trouble you are going through

OpenStudy (anonymous):

so it becomes \[12a ^{3}b ^{-2} = 12 a ^{3-1}b ^{2-(-2)}\] ------- ----------- 4ab^-2 4

OpenStudy (anonymous):

Now 12/4 = 3, so final answer is \[3a ^{2}b ^{4}\]

OpenStudy (anonymous):

Hope it is clear!!

OpenStudy (anonymous):

??????

OpenStudy (anonymous):

thats great

OpenStudy (anonymous):

Got a medal for me???

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