September 2018 1 13 Report

równania kwadratowe

rozwiąż równania

a) 2x^2+7x+3=0

b) 6x^2-2x-1=0

c) 28x^2-4x+1\7=0

d) -x^2+6x+1=0

e) -3x^2+2x-3=0

f) 6x^2-11x-7=0

a) 2x^2-9x-35=0 d) 5x^2-6x+6=0

b) 4x^2-13x+3=0 e) -2x^2+5x-3=0

c) -6x^2+13x+5=0 f) 4x^2+12x+9=0

g) 1\2x^2+x+1=0 h) x^2-x\2-1\2=0

i) 1\4x^2-x\3+1\9=0

a) 2x^2+3=-7x b) x+10=3x^2

c) 16x^2+24pierwiastek z 2x=-18 d) -2x-3x^2+6=0

e) 5x^2=2-2x f) 5x^2=8x-5 g) 11(x^2+5)=x

h) x^2+x=4x+7 i) 3x^2+1=7x


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