September 2018 1 20 Report

1. rowiąż rownanie !

g) x^{2} - 4x + 1 = 0

h) x^{2} + 6x - 7 = 0

i) x^{2} + 3x - 2,5 = 0

2. Rozwiaz rownanie !

b) -x^{2} - 2x + 15 = 0

c) -4x^{2} + 2x - 5 = 0

d) x^{2} + 10 = 7x

e) 1 + x + 5x^{2} = 0

f) 15-3x^{2}-4x=0

g) 12x + 7 = 21x^{2}

h) 0,04x^{2} - 0,4x = 1

i) 4x-3x^{2}=1\frac{1}{3}

j) \frac{1}{2}x^{2} - 10 = 6x

k) 2x + \frac{1}{x}=3

l) \frac{15}{x^{2}}-\frac{2}{x}-1=0

m) \frac{2x-1}{x+1}=\frac{2}{x}

n) \frac{x-3}{x}=\frac{5-x}{x+1}

prosze o pomoc i dziekuje :* :P


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