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Irina-Kira [14]
3 years ago
7

2 Solve x +10x= 39 by completing the square.

Mathematics
1 answer:
Oksanka [162]3 years ago
6 0
(x + 5)^2 - 25 = 39
(x+5)^2 =  64

(x + 5)   =+/- sqrt64  = +/- 8

x =  3,    -13
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