September 2018 1 25 Report

Rozwiąż nierówności kwadratowe, daje naj!!!


a)x(x+5) \geq 2x(x-1)

b) x^{2} + 2x + 1>0

c)-x^{2}+4x-3\leq0

d) (x+2)^2-6x>2x^{2}+4

e) x^2+x+1\leq0

f) -3x^2+27\leq0

g) x^2-5x<0

h) (x+2)(x+1)>0

i) -(x-5)(x+1)<0

j) -2x^2>16


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