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irinina [24]
3 years ago
6

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! I CANNOT RETAKE THIS!!

Mathematics
1 answer:
worty [1.4K]3 years ago
5 0

{y}^{2}  + 49 \\  \\   = {y}^{2}  - ( - 49) \\  \\   =  {y}^{2} -  {(7i) }^{2} \\  \\   = (y + 7i)(y - 7i)
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