Question

9. The value of ( sqrt 5 + sqrt 2 )( sqrt 5 - sqrt 2 )is: (a) 10 (b) 7 (c) 3 (d) sqrt(3)​

Answer 1

Answer:

(-/5+-/2)(-/5- -/2)

(-/5)²-(-/2)²

5-2

3

{(a+b)(a-b)=a²-b²}

Answer 2

Answer:

IF IT IS HELPFUL

Step-by-step explanation:

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