Question

√50+√128=√N then value of N . Explain please​

Answer 1

Solution :

$\sqrt{50} + \sqrt{128} = 7.83$

Answer 2

$\sqrt{50} + \sqrt{128} = \sqrt{n} \\ 5 \sqrt{2} + 8 \sqrt{2} = \sqrt{n} \\ 13 \sqrt{2} = \sqrt{n} \\ \sqrt{n} = 13 \sqrt{2} \\ {( \sqrt{n} )}^{2} = {(13 \sqrt{2}) }^{2} \\ n = 169 \times 2 \\ n = 338$