Question

Simplify: root 45- 3root20 + 4root5​

Answer 1

Question:-

$\sqrt{45} \: - 3 \sqrt{20} + 4 \sqrt{5}$

Answer:-

$\sqrt{9 \times 5} \: - 3 \sqrt{4 \times 5} \: + 4 \sqrt{5}$

$\sqrt{9} \times \sqrt{5} - \: 3 \sqrt{4} \times \sqrt{5} + 4 \sqrt{5}$

$3 \sqrt{5} - 6 \sqrt{5} + 4 \sqrt{5}$

$\sqrt{5}$

u'r done!!

Thnx✌️♥️~

Answer 2

√5 is the Answer

Thnx✌️✌️