1.

Simplify1) (5+√7) (2+√5)2) (5+√5) (5-√5)​

Answer»

Answer:

20

Step-by-step EXPLANATION:

(5+√5) (5-√5)

= 5(5-√5) + √5(5-√5)

= (5×5) - 5√5 + 5√5 - (√5 - √5)

= 25 - 5√5 + 5√5 - 5

= 25 - 5

= 20

Hence (5+√5) (5-√5) = 20

Hope it is HELPFUL.



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