3n^2 = 72 divide by 3?

4 ⤊

2007-12-12 02:59:50 · 4 answers · asked by KC 1 in Science & Mathematics ➔ Mathematics

3n² = 24
n² = 8
n = √8
n = 2√2 (taking +ve square root)

2007-12-12 03:21:59 · answer #1 · answered by Como 7 · 3⤊ 0⤋

3 n^2 = 72/3
or n^2 = 72/9 =8
n = rt 8 = root (4 Ã 2) = 2 root 2

2007-12-12 11:03:44 · answer #2 · answered by Pranil 7 · 0⤊ 1⤋

3nÂ² = 72/3
3nÂ² = 24
n=â8
n=Â±2â2
or n=Â± 2.828427125

2007-12-12 11:05:06 · answer #3 · answered by Murtaza 6 · 1⤊ 3⤋

Yes, that's the first step.
Then take the square root of both sided to solve for n.

2007-12-12 11:04:53 · answer #4 · answered by Anonymous · 0⤊ 2⤋