Question

2- Simplify: 7√5-4√5+√180​

Answer 1

Answer:

Right

Step-by-step explanation:

3✓5+√6×6×5

3✓5+6✓5

9✓5

Answer 2

$= > 7 \sqrt{5} - 4 \sqrt{5} + \sqrt{180} \\ = > 7 \sqrt{5} - 4 \sqrt{5} + 6 \sqrt{5} \\ = > 7 \sqrt{5}+ 6 \sqrt{5} - 4 \sqrt{5} \\ = > 13 \sqrt{5} - 4 \sqrt{5} \\ = > 9 \sqrt{5} \: \: \: or \: \: \: \sqrt{405}$

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