Question

(2/45+3/20)
10. Simpl(2√45+3√20)÷2√5​

Answer 1

Step-by-step explanation:

Let’s simplify first all the square roots.

2√45

The factors of 45 are:

1 and 45

3 and 15

5 and 9

The perfect square is 9, so it becomes 2∗3∗√5 or 6√5 ,

3√20

The factors of 20 are:

1 and 20

2 and 10

4 and 5

The perfect square is 4, so that one becomes 2∗3∗√5 or 6√5 ,

And the last one has no simpler expression.

6√5/2=15

6√5+15=28.41640786499873817845504201238765741264371015766915434562... which is irrational.