September 2018 1 14 Report

rozwiaz rownanie:

a) 9x kwadrat-6x+1=0

b) -2x kwadrat +x+1=0

c) 5x kwadrat -2x=-3

d) 9x kwadrat =3x+2

e) 3x kwadrat -5x =x kwadrat +2x-3

f) -5x kwadrat +5x-4=-x kwadrat -7x+5

g) x do 4+8x kwadrat=9

h) -x do 4+7x kwadrat=3(x do 4+1)

i) (5x-8)(4-3x)+x(4-x)=0

j) (2x-3)(x+5)=(5x+9)(6+3x)

k) x(2x+7)-5=(x+4)(5-x)

l) (3x-1)(2-x)-x(x+3)=2

pomóżcie proszę:)



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