Answer with Explanation:

3Sq. root of5 + Sq. root of 125 = 17.88

=>3 Sq. root of 5 + Sq. root of 25 x 5 = 17.88

=> 3 Sq. root of 5 + 5 Sq. root of 5 = 17.88

=> 8 Sq. root of 5 = 17.88

=> Sq. root of 5 = 2.235

Therefore, Sq. root of 80 + 6 Sq. root of 5 = 16 x 5 + 6 Sq. root of 5

   = 4 Sq. root of 5 + 6 Sq. root of 5

   = 10 sq. root of 5 = (10 x 2.235) = 22.35

back