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Mathematics 10 Online
OpenStudy (anonymous):

X^2-5 Can not be factored. Correct?

OpenStudy (across):

Recall that\[a^2-b^2=(a+b)(a-b)\]

OpenStudy (anonymous):

But the square root of 5 is not a whole number.?

OpenStudy (across):

It's an irrational number.

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