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OpenStudy (anonymous):
Simplify the following radical
14 years ago
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OpenStudy (anonymous):
\[\sqrt{48}-\sqrt{27}+\sqrt{12}\]
14 years ago
OpenStudy (anonymous):
show steps please
14 years ago
OpenStudy (anonymous):
|dw:1348950219179:dw|
14 years ago
OpenStudy (anonymous):
thats the answer
14 years ago
OpenStudy (anonymous):
how :/
i got 5 square root 3
14 years ago
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OpenStudy (anonymous):
dont have time to show the steps but i 100% thats the answer
14 years ago
OpenStudy (anonymous):
treat the radical like a variable. in order to add or subtract them you need to get a common number under the radical.
14 years ago
OpenStudy (anonymous):
can yu tell me the answer
so i know whats the right ans :/
14 years ago
OpenStudy (anonymous):
\[\sqrt{48}=\sqrt{2}\times \sqrt{24}=\sqrt{4}\times \sqrt{4}\times \sqrt{3}=4\sqrt{3}\]
14 years ago
OpenStudy (anonymous):
so in this case I see that 3 is a common multiple of all the radicals and when 3 is factored out a perfect square is left. This can be used to simplify each radical
14 years ago
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OpenStudy (anonymous):
@Charmi are you with me so far
14 years ago
OpenStudy (anonymous):
so that is the first part simplified.. now do the other two. unless i need to put that as well
14 years ago
OpenStudy (anonymous):
can yu please put it too
14 years ago
OpenStudy (anonymous):
|dw:1348950517872:dw|
14 years ago
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