no.(3-under root 7 ) (3+under root 7) rational or irrational
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2
it is a rational number because if we multiple both the brackets we get (3 square - root 7 square and after sloving we get 9-7. So the answer is 2 and 2 is a rational .Thank you
Answered by
4
(3-√7) (3+√7)
= (3)^2 - (√7)^2
= 9 - 7
= 2
2 is a rational number
So it's rational
Hope it will help you .
= (3)^2 - (√7)^2
= 9 - 7
= 2
2 is a rational number
So it's rational
Hope it will help you .
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