Y + 7i y-7i
Step-by-step explanation:
Answer:
(y + 7i)(y - 7i)
It cannot be factored using real numbers, but consider
7i × - 7i
= -49i² and i² = - 1
= 49
The factoring as a difference of squares to obtain
y² + 49 = (y + 7i)(y - 7i)
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