whats the square root of 540?
sqrt (540) =
sqrt (54 * 10) =
sqrt( 9 * 6 * 5 * 2) =
sqrt(9 *3 * 2 * 5 * 2) =
sqrt (9 * 4 * 3 * 5) =
sqrt(36 * 15) =
sqrt(36) * sqrt(15) =
6 * sqrt(15)