September 2018 1 21 Report

Rozwiąż równanie:

a)x2-6x-7=0

b)x2-x+1/4=0

c)x2-4x+25=0

d)-2x2+x+3=0

e)-x2-20x-75=0

f)x2+5x+8=0

g)2x2-3x+12,2=0

h)y2-20x+20=0

i)3z2-2z+10=0

j)y2-2y+1=1/4

k)y2-0,2y+0,01=0,99

l)3/4V2-2v+9=0

m)(5-x)(x-9)=(5-x)(7-x)

n)1/6x2-1 1/3 x=-2

x2 to jest do kwadratu jak coś

1/4 to jeest ułamek jak coś


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