October 2018 1 58 Report

Rozwiąż nierówności kwadratowe : PILNE ! ^2 - oznacza do kwadratu

1. a) (2x-1)^2 > 16

b) (3x + 1)^2 + 3 < 0

c) (4x-1)^2\geq 0

d) 9-(2x-1)^2\geq 0

e) -1 < - (1-x)^2

f)(3x-1)^2 \leq 0

2.

a) x > 6x^2

b)1/3x^2 + 4 > 0

c) 3x ^2 + 1 > 2 1/2x (dwa i jedna druga x)

d) 1/2x^2 - x \geq 1

e) 3x^2 + 7 \geq 5x


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