simplify square root 162
2007-09-09 09:08:39 · 4 answers · asked by confused 4 in Science & Mathematics ➔ Mathematics
sqrt(81*2)
Simplify the one perfect square in the square root.
=
9*sqrt(2)
2007-09-09 09:18:07 · answer #1 · answered by Ira R 3 · 0⤊ 0⤋
Be ready with a table of numbers like this: 0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169
Use the biggest one that will divide into 162.
162 = 81 X 2
Sqrt(162) = sqrt(81X2) = sqrt(81)Xsqrt(2) = 9Xsqrt(2) = Ans
2007-09-09 16:16:44 · answer #2 · answered by Sciman 6 · 0⤊ 0⤋
9 square root of 2
2007-09-09 16:13:20 · answer #3 · answered by hintzruby 1 · 0⤊ 0⤋
what you have to do is find perfect squares that would come out of the number under the radical, in this case it would be 162. examples of perfect squares would be: 4,9,16,25, etc. the best one to use in this case would be 81. you can change it to sqrt of 81 times the sqrt of 2. sqrt of 81 is 9, so the answer is 9sqrt2.
have yourself a good day.
2007-09-09 16:16:42 · answer #4 · answered by climberguy12 7 · 0⤊ 0⤋