simplify 3 to the power of 3 square root 375
|dw:1325846921270:dw|
do you have an idea on how to do this? if you try it I can help you with any problems
i have no idea how to solve this
okay well we need to to find factors of 375, what are they?
Any idea how surds work at all?
no..
375=3*5^3
that's okay when we simplify we want to separate the square root into this \[\sqrt{x^2}=x\] For example is I have \[\sqrt{75}=\sqrt{3*25}\]\[=\sqrt{3}\sqrt{25}\]\[=\sqrt{3}\sqrt{5^2}\]\[=5 \sqrt{3}\]
cherrypot try this one \[\sqrt{72}\]
@will why it is 135sqrt(6)
should be \[135\sqrt{15}\]
\[3^2\sqrt{375}=9\sqrt{25*15}\]\[=9\sqrt{25}\sqrt{15}\]\[=9*5\sqrt{15}\]\[=45\sqrt{15}\]
how are you going with the \[\sqrt{72}\] cherrypot?
It's 3 cubed Zed, need to multiply by 3 again
my apologies i thought it said squared. it is \[135\sqrt{15}\] thanks Will!
i think it is cubic root?
3 power 3, sq. root 375
it says square root in the original post, Yifan :)
oh..i ididnt see that
Join our real-time social learning platform and learn together with your friends!