Question

(5+2root2) (5-2root2)
STEMS
t these answers, you would have used the
have learnt in your earlier classes. (Here a​

Answer 1

Answer:

use the identity

Step-by-step explanation:

(a+b)(a-b)=a square - b square

Answer 2

a²-b² = (a+b)(a-b)

=> (5+2√2)(5-2√2)

=> 5²-(2√2)²

=> 25-8

=> 17

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