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Mathematics 7 Online
OpenStudy (anonymous):

square roots HELP!!

OpenStudy (anonymous):

OpenStudy (paxpolaris):

first simplify all square roots ... what do you get?

OpenStudy (anonymous):

i don't know, I'm horrible at math

OpenStudy (paxpolaris):

\[\Large \sqrt{27x^2y}=3x \sqrt{3y}\] do you get how to do that...

OpenStudy (anonymous):

kinda

OpenStudy (paxpolaris):

try the same for all the other terms : √(45xy^2) = ?? \[\sqrt{45xy^2} =??\]

OpenStudy (anonymous):

i have no idea :/

OpenStudy (paxpolaris):

well there is a y^2 ... the square root of the is just y as for the number part:\[\Large \sqrt{45}=\sqrt{5 \times 3\times 3} = 3\sqrt5\]

OpenStudy (anonymous):

i think its B

OpenStudy (paxpolaris):

no

OpenStudy (anonymous):

:/

OpenStudy (anonymous):

i don't know :(

OpenStudy (paxpolaris):

\[\Large \sqrt{45xy^2} = 3y \sqrt{5x}\]

OpenStudy (anonymous):

so A?

OpenStudy (anonymous):

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