Question

simplify 3✓45 - ✓125 - ✓50​

Answer 1

Answer:

3.42

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Answer 2

Step-by-step explanation:

$3 \sqrt{45} = 3 \sqrt{3 \times 3 \times 5} = 3 \times 3 \sqrt{5} = 9 \sqrt{5}$

$\sqrt{125} = \sqrt{5 \times 5 \times 5} = 5 \sqrt{5}$

$\sqrt{50} = \sqrt{2 \times 5 \times 5} = 5 \sqrt{2}$

$3 \sqrt{45} - \sqrt{125} - \sqrt{50} = 9 \sqrt{5} - 5 \sqrt{5} - 5 \sqrt{2}$

$= 4 \sqrt{5} - 5 \sqrt{2}$