anonymous
  • anonymous
WILL SOMEONE HELP ME
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
with what
anonymous
  • anonymous
RADICALS
anonymous
  • anonymous
wat u mean

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anonymous
  • anonymous
u i might be able to help u
anonymous
  • anonymous
\[-\sqrt{27}+3\sqrt{3}+2\sqrt{45}+3\sqrt{12}\]
anonymous
  • anonymous
all you can do here is simplify 3√12
anonymous
  • anonymous
\[2\sqrt{6}+3\sqrt{45}-2\sqrt{54}-3\sqrt{3}\]
anonymous
  • anonymous
3√12 is 3√4x3, the square root of 4 is 2 which pops out and u multiply the 3 by 2 to have 6√3
anonymous
  • anonymous
you should have 9√3
anonymous
  • anonymous
for the 2nd one or the 1st one
anonymous
  • anonymous
ok, i thought this was one problem, so you want to simplify the first one right?
anonymous
  • anonymous
yes
anonymous
  • anonymous
−√27 + 3√3 + 2√45 +2√45 + 3√12 is where we start right
anonymous
  • anonymous
crap i have 2squarerrot 45 twice
anonymous
  • anonymous
take one out
anonymous
  • anonymous
−√27 + 3√3 + 2√45 + 3√12
anonymous
  • anonymous
yes that is right
anonymous
  • anonymous
3√12 can become 3√(4)(3)
anonymous
  • anonymous
how do u work it out
anonymous
  • anonymous
since 2 is the SRoot of 4, it comes out to me multiplied by the 3 on the outside, leaving the 3 inside to become 6√3
anonymous
  • anonymous
3(2)√3 which is 6√3, now you can add this to the other 3√3 in the problem
anonymous
  • anonymous
add wat one and i think u so much for helpin me thanks
anonymous
  • anonymous
−√27 + 3√3 +(6√3) + 2√45 you can only add radicals when they are the same inside
anonymous
  • anonymous
so i add 3and 3
anonymous
  • anonymous
we can actually simplify the 2 sroot 45. Give me a few min to show you how. Come back in about 5 minutes and it will be done
anonymous
  • anonymous
alright think u so much
anonymous
  • anonymous
NP
anonymous
  • anonymous
http://imgur.com/sxDwY

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