If √7 is an irrational number then prove that 3 - 2 √7 is an irrat

1.	If √7 is an irrational number then prove that 3 - 2 √7 is an irrational number.plz tell me fast step by step..
Answer» Answer: LET 3-2√7 be a rational 3-2√7=p/q where p and q are integers and q is not equal to 0 √7= p/q-3+2 here √7 is IRRATIONAL and p-3+2/q is rational which is never POSSIBLE and our supposition is wrong hence 3-2√7 is irrational proved if you like then MARK as the BRAINLIEST answer

If √7 is an irrational number then prove that 3 - 2 √7 is an irrational number.plz tell me fast step by step..

Answer»

Answer:

LET 3-2√7 be a rational

3-2√7=p/q where p and q are integers and q is not equal to 0

√7= p/q-3+2

here √7 is IRRATIONAL and p-3+2/q is rational which is never POSSIBLE

and our supposition is wrong

hence 3-2√7 is irrational

proved

if you like then MARK as the BRAINLIEST answer

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If √7 is an irrational number then prove that 3 - 2 √7 is an irrational number.plz tell me fast step by step..​

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If √7 is an irrational number then prove that 3 - 2 √7 is an irrational number.plz tell me fast step by step..