Question

root 45 minus 3 root 20 + 4 root 5

Answer 1

Hey friend,
Here is the answer you were looking for:

The answer is √5

(Explanation in the attachment)

Hope this helps!!!

If you have any doubt regarding to my answer, then feel free to ask in comment section or you can also inbox me.

@Mahak24

Thanks...
☺☺

Answer 2

Hi ,

√45 - 3√20 + 4√5

= √( 3 × 3 × 5 ) - 3√(2×2×5 ) + 4√5

= 3√5 - 6√5 + 4√5

= 7√5 - 6√5

= √5

I hope this helps you.

: )