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Factor if possible. If not write P for Prime.
y^2+169



Sagot :

AL2006

Expressions that include variables are not normally spoken of as "prime" or composite.  Numbers are. 

The expression [ y² + 169 ] can't be algebraically factored. It's especially
NOT  [ y + 13 ] .  But whether or not it's prime depends on the value of 'y'.