How do you simplify sqrt(18 x^8)?
1 Answer
Mar 10, 2016
sqrt(18x^8) = 3sqrt(2)x^4
Explanation:
If
Notice that
Note also that
Hence:
sqrt(18x^8) = sqrt((3x^4)^2*2) = sqrt((3x^4)^2)sqrt(2) = 3x^4sqrt(2) = 3sqrt(2)x^4