October 2018 1 43 Report

1)Zapisz w prostszej postaci :

a) (-\infty,-38>\cap<-7,1>
b) <-30,57>\cup(-18,\infty)

c) ((-\infty,-2>\backslash<-7,8))\cap {5}

d) <-5,-10>\cap(-1,\infty)

e) <-44,22>\cup (-12,\infty)

2)Jeśli to możliwe , zapisz funkcję w postaci iloczynowej :

a) y=-x^{2}-6x

b) y=100x^{2}-4

c) y=2x^{2}+3x+1

d) y=7x^{2} -13x+6

e) y+-5x^{2}+x+4

f) y=3x^{2}-12 + 9

g) y=5x^{2} -2x-3

h) xy=x^{2}+9x-10


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