Rozwiąż równanie: x(2x+3)-2x(x+2)+2=9-(5-x)
x(2x+3)-2x(x+2)+2 = 9-(5-x)
2x²+3x-2x²-4x+2 = 9-5+x
-x+2 = 4+x
-x-x = 4-2
-2x = 2 /:(-2)
x = -1
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x(2x+3)-2x(x+2)+2 = 9-(5-x)
2x²+3x-2x²-4x+2 = 9-5+x
-x+2 = 4+x
-x-x = 4-2
-2x = 2 /:(-2)
x = -1
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