December 2018 1 27 Report
Niech mi ktoś wytłumaczy to zadanie, a szczególnie to z skąd się wzięło te 6x, wiem że niby z wzoru skróconego mnożenia, ale totalnie tego nie rozumiem.
Napisz wzór funkcji kwadratowej w postaci ogólnej
Rozwiązanie:
f(x)=-2(x+3)^2-4
f(x)=-2(x^2+6x+9)-4
f(x)=-2x^2-12x-18-4
f(x)=-2x^2-12x-22
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