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Mathematics 19 Online
OpenStudy (anonymous):

i have to combine this problem

OpenStudy (anonymous):

\[\sqrt{75a^3} + a \sqrt{12a}\]

OpenStudy (anonymous):

cant get ur quesn!1

OpenStudy (anonymous):

i have to combine the problem above

OpenStudy (anonymous):

wat do u mean dat u wanna combyn it????????

OpenStudy (anonymous):

simplification :)

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

=\[5a \sqrt{3a} +2a \sqrt{3a}\] =\[7a \sqrt{3a}\]

OpenStudy (anonymous):

5 .3^ (1/2)* a^ (3/2) + 2. 2^(1/2) * a^ (3/2) a^(3/2) * 3^(1/2)[5 + 2] 7 * a^(3/2)* 3^(1/2)

OpenStudy (anonymous):

\[7a \sqrt{3a}\]

OpenStudy (anonymous):

\[\sqrt{75a^3}-a\sqrt{12a} \text{ = } 5 \sqrt{3} a^{3/2}-2 \sqrt{3} a^{3/2} \text{ = } 3 \sqrt{3} a^{3/2} \] If a in each expression above is set to 13 and evaluated, the following is true respectively: {243.555, 243.555, 243.555} @ a=13, \[7a \sqrt{3a} = 568.295 \] Perhaps I have made a mistake somewhere.

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