Question

4+✓5/4-✓5+4-✓5/4+✓5​

Answer 1

Answer:

8

Step-by-step explanation:

+√5/4-√5/4=0

-√5+√5=0

4+4=8 answer

Answer 2

Answer:

hey

Step-by-step explanation:

\frac{4 + \sqrt5}{4 - \sqrt5} + \frac{4 - \sqrt5}{4 + \sqrt5}

[\frac{4 + \sqrt5}{4 - \sqrt5}\times \frac{4 + \sqrt5}{4 + \sqrt5}] + [\frac{4 - \sqrt5}{4 + \sqrt5}\times \frac{4 - \sqrt5}{4 - \sqrt5}]

\frac{(4 + \sqrt5)^2}{4^2 - 5} + \frac{(4 - \sqrt5)^2}{4^2 - 5}

\frac{16 + 5 + 8\times \sqrt5}{11} + \frac{16 + 5 - 8\times \sqrt5}{11}

\frac{16 + 5 + 8\times \sqrt5 + 16 + 5 - 8\times \sqrt5}{11}

\frac{42}{11}