2007-12-01 00:31:46 · 9 answers · asked by itqueen293 2 in Science & Mathematics ➔ Mathematics
√18 = √ (9 x 2) = √9 √2 = 3 √2
2007-12-03 05:52:30 · answer #1 · answered by Como 7 · 1⤊ 1⤋
because 3 has been square-root-ed.And because 3√2 = 3 * √2,3 has to be squared so 3 becomes 9 and 9*2 = 18.That's why 3√2 is actually √18.
2007-12-01 00:36:29 · answer #2 · answered by Kenneth Koh 5 · 2⤊ 1⤋
we know that 3 = √9 as 3*3 = 9
now √(a*b) = √a * √b
using these we get
3√2 = √9 * √2 = √(9*2) = √18
2007-12-01 00:39:10 · answer #3 · answered by Mein Hoon Na 7 · 1⤊ 1⤋
root 18, is the multiple of root 9 and root 2 (use calculator if you dont believe).
Therefore, if you simplify, root 9, it becomes three, so its not root 9 times root 2 = root 18
its 3 times root 2 = root 18.
I hope that made sense.
2007-12-01 00:37:09 · answer #4 · answered by Anonymous · 2⤊ 1⤋
Only got reported once for a stupid reason, I was going to appeal it, but other answers said they just allow appealing to sound fair. I mean maybe it happened a few times, but I think they were kidding. Just go along with it, read the guiellines and terms of service JUST IN CASE, then delete your email talking about it. Everyone gets reported sometimes, and it;'s usually for stupid reasons, if any.
2016-05-27 02:21:56 · answer #5 · answered by shannon 3 · 0⤊ 0⤋
Sqrt ( 3x3x2)
only the 3 is squared
so the 2 has to remain inside the sqrt root symbol
(Keep it simple)
2007-12-01 00:41:10 · answer #6 · answered by Anonymous · 0⤊ 1⤋
3root2.
when u take 3 inside it becums root 2*3*3=root of 18
converse for root 18
2007-12-01 00:39:20 · answer #7 · answered by sadhana s 2 · 1⤊ 1⤋
dear square 3root3 ie 3 *root2*3*root2( 3*3=9 and root2*root2=2 ie 9*2 ie 18)
hence ans is root18
2007-12-01 00:38:08 · answer #8 · answered by Sumir D 2 · 2⤊ 1⤋
3xsqrt2=sqrt9xsqrt2=sqrt9x2=sqrt18
2007-12-01 16:19:52 · answer #9 · answered by catsfanj 3 · 0⤊ 1⤋