Rozwiąż równanie:
Wzory skróconego mnożenia więc:
x^2 - 2x +1 -x^2 -8x -16 +2x +31=0
-8x + 16 = 0
x = 2
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Wzory skróconego mnożenia więc:
x^2 - 2x +1 -x^2 -8x -16 +2x +31=0
-8x + 16 = 0
x = 2