Answer:
1
Step-by-step explanation
1) Prime
2) (x + 5)(x − 1) = x²-1x+5x-5= x²+4x-5
3) (x − 5)(x − 1)= x² -1x -5x +5= x² -6x +5
4) (x + 5)(x + 1) = x² +1x +5x+ 5x = x² +6x+5
It is 1) Prime
prime
Explanation:
x^2 − 4x + 5
What two numbers multiply to 5 and add to -4
There are none so this is prime
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