write whether 2 root 45 + 3 root 20 divided by 2 root 5 on simplification give a rational or irrational number

    245 + 32025=23×3×5 + 35×2×225=2×35 + 3×2525=65 + 6525=12525 = 6 , which is a rational number.

  • 182

(2√45 + 3√20)/2√5

= √5(2√9 + 2√4)/2√5

= (2*3 + 2*2)/2

= 10/2

= 5

= Rational

  • -30
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