Question

write whether 2√45+3√20/2√5 on simplification gives an irrational or a rational number​

Answer 1

Answer:

I think it will help

• 2√45+3√20/2√5

1. 2√3×3×5 + 3√2×2×5/2√5

2×3√5 + 3×2√5/2√5

6√5 + 6√5/2√5

12√5/2√5

6

hence it is rational number

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PLS MARK IT AS BRAINLIST ANSWER

Answer 2

Step-by-step explanation:

2√45+3√20/2√5

2√9×5+3√4×5/2√5

2×3√5+3×2/2

6√5+3=√30×5+√9=√150+√9=√159