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the square root of 18 can be simplified to 3 * the square root of 2.The perfect square 9 is a factor of 18. That means the square root of 9 * the square root of 2 = the square root of 18.the square root of 9 can be simplified to 3.That leaves 3 * the square root of 2.
9 square root 2
sqrt(162) = 9*sqrt(2)
Square root of 324 = square root of (81 x 4) = square root of 81 x square root of 4 and that is 9 x 2 = 18 cm
sq. root of (80/125)= sq. root of [(9)(2)(5)/(25)(5)]= (sq. root of 9)(sq. root of 2)/sq. root of 25= (3/5)sq. root of 2