Question

ROOT 45–3 root 20 +4 root 5​

Answer 1

$\sqrt{45} - \sqrt[3]{20} + \sqrt[4]{5} \\ = \sqrt{9 \times 5} - \sqrt[3]{4 \times 5} + \sqrt[4]{5} \\ = \sqrt[3]{5} - \sqrt[6]{5} + \sqrt[4]{5} \\ = \sqrt{5}$

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Answer 2

Answer:

√5

Step-by-step explanation:

first you simplify √45 and √20

√45 = √9 × √5

=3√5

√20 = √4 × √5

=2√5 × 3 = 6√5

3√5 - 6√5 + 4√5

3√5 + 4√5 - 6√5

7√5 - 6√5

= √5

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