Question

simplify √45+ 3√20+ 4√5​

Answer 1

Answer:

$13 \sqrt{5}$

Step-by-step explanation:

$\sqrt{45} + 3 \sqrt{20} + 4 \sqrt{5} \\ 3 \sqrt{5} + 3(2 \sqrt{5} ) + 4 \sqrt{5} \\ 3 \sqrt{5} + 6 \sqrt{5} + 4 \sqrt{5} \\ 13 \sqrt{5}$

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Answer 2

Answer:

= √45 - 3√20 + 4√5

=  3√5 -3*2√5 +4√5  

= 3√5-6√5+4√5

=  (3-6+4)√5  

= (-3+4)√5

Answer= √5

(Some are common so that's why it has been removed )

Hope it helps u

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