Zad.12
Rozwiąż równania:
a)
b)
c)
pierwsze
a
wyciagam x przed nawias i reszte z delty
x[x^2 - 5x +4]
delta= b^2-4ac= 25-4*1*4=9
pierw z delty to 3
x1= [-b+pierw z delty] /2a=8/2=4
x2= [-b-pierw z delty] /2a=2/2=1
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pierwsze
a
wyciagam x przed nawias i reszte z delty
x[x^2 - 5x +4]
delta= b^2-4ac= 25-4*1*4=9
pierw z delty to 3
x1= [-b+pierw z delty] /2a=8/2=4
x2= [-b-pierw z delty] /2a=2/2=1