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Mathematics, 27.01.2020 17:31 heavenwagner

Y^2+18y+81=0

a) {9}
b) {9,-9}
c) {-9}
d) {0,-1}

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Y^2+18y+81=0

a) {9}
b) {9,-9}
c) {-9}
d) {0,-1}...
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