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arturocarmena10
28.01.2020 •
Mathematics
Slove x^2 + 9 + 9 = 0.
a. -9 + 3 square root 5 / 2
b. 9 + 3 square root 5 / 2
c. -9 + square root 117 / 2
d. 9 + square root 117 / 2
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