Question

What is the solution to the equation? n = 2 n = 4 n = 7 n = 14

Answer 1

Answer:

n = 2

Step-by-step explanation:

$\sqrt{2n+28}-4\sqrt{n}=0\\\\\\\sqrt{2n+28} = 4\sqrt{n}$

Take square,

$(\sqrt{2n+28})^{2}=( 4\sqrt{n})^{2}\\\\ 2n + 28 = 16n\\\\28 = 16n -2n\\\\28 =14n\\\\14n=28\\\\n=\frac{28}{14}\\\\n=2$