Choose the correct options for the following questions.
If x-1 is a factor of $x^{2}+Px-4$, then P has the value
Difficulty: Easy
A:
4
B:
1
C:
3
D:
5
If $P(x)=x^{4}-13x^{2}+36$ and P(a)=0, then a equals
Difficulty: Easy
A:
1
B:
2
C:
-1
D:
-2
What is the value of P is $x^{2}-Px+P$ divisible by x-P?
Difficulty: Easy
A:
1
B:
-1
C:
-1/2
D:
0
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