stinematesa
05.11.2020 •
Mathematics
Help, using elimination method!
2x + 10y = 54
-7x - 10y = -89
Solved
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Ответ:
y = 2x^2
y = –3x −1
2x^2 = –3x −1
2x^2 +3x +1 = 0
x1= -0.5
x2 = -1
y1 = 0.5
y2 = 2