Why can the following problem NOT be factored?
x2−7x+9
2
−
7
+
9
(1 point)
Responses
The coefficients are all odd integers.
The coefficients are all odd integers.
There is not a greatest common factor.
There is not a greatest common factor.
There are no two integers that give a product of 9 and a sum of -7.
There are no two integers that give a product of 9 and a sum of -7.
Sorry, but this problem can be factored!