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NO!!! Because

sqrt(63) = sqrt(9) X sqrt(7)

sqrt(9) = 3

sqrt(7) is '2.645751311....' , which is irrational.

Remember square root of prime numbers are irrational , and

Rational multiplied to irrational results in an irrational answer.

'7' is a Prime number.

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lenpollock

Lvl 17
1w ago

What else can I help you with?