Question

4+√5 4-√5
____ + _______ simplify....
4-√5. 4+√5.
plz answer fast and correct if answer step by step. I will mark ur answer as brilliantest or reported plz fast...... it contains 10 points..... ​

Answer 1

Answer:

42/11

Step-by-step explanation:

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

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

$=\frac{(16+5+8\sqrt5)+(16+5-8\sqrt5)}{4^2-(\sqrt5)^2}$

$=\frac{21+21}{16-5}$

$=\frac{42}{11}$

HOPE IT HELPS,

PLEASE THANK ,FOLLOW AND MARK AS BRAINLIEST.

Answer 2

Answer:

Step-by-step explanation:

Answer:

42/11

Step-by-step explanation:

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

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

=\frac{(16+5+8\sqrt5)+(16+5-8\sqrt5)}{4^2-(\sqrt5)^2}

=\frac{21+21}{16-5}

=\frac{42}{11}

HOPE IT HELPS,

PLEASE THANK ,FOLLOW AND MARK AS BRAINLIEST.