Question 122

$$\sqrt{3136}-\sqrt{1764}=\sqrt{?}$$

Solution

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Let the missing number be y

$$\sqrt{3136}-\sqrt{1764}=\sqrt{?}$$

56 x 56 = 3136

42 x 42 = 1764

56 - 42 = $$\sqrt{y}$$

y = 196

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