Question

simplify the following question​

Answer 1

here is your answer

hope it helps.....

Answer 2

Answer:

42/11

Step-by-step explanation:

(4+√5)(4+√5) + (4-√5)(4-√5)

16 +4√5+4√5+5+ 16-4√5-4√5+5

16+8√5 + 5 + 32 + 16 - 8√5 + 5

32 +10 =42

(4+√5)(4-√5) = 16-4√5+4√5+5 = 11

I hope it's useful