Instructions

What will come in place of the question mark (?) in each of the following questions ?

Question 137

$$\sqrt{(176\times2+3^{2})}=4+\sqrt{?}$$

Solution

Expression : $$\sqrt{(176\times2+3^{2})}=4+\sqrt{?}$$

=> $$\sqrt{352 + 9} = 4 + \sqrt{x}$$

=> $$\sqrt{361} = 4 + \sqrt{x}$$

=> $$19 = 4 +\sqrt{x}$$

=> $$\sqrt{x} = 19 - 4 = 15$$

=> $$x = (15)^2 = 225$$


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