It is prime because it has no common factors in 5a^2 and b.
The answer is A<span>.</span>
1 – 4k – 5 = -5 +4- 7K + 6 K = 3 K= -5 K=0 K = -7
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It is prime because it has no common factors in 5a^2 and b.
The answer is A<span>.</span>