rozwiaz nierownosci
a
b
x+4≥2
x≥2-4
x≥-2 lub x≥2
b)
x²-4x+4-x+1\2 > -(2x+4+x²+2x)
2(x²-4x+4)-x+1 \ 2 > -x²-4x-4
2x²-9x+9\2 > -x²-4x-4
2x²-9x+9 > 2(-x²-4x-4)
2x²-9x+9 > -2x²-8x-8
4x²-x+17 >0
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x+4≥2
x≥2-4
x≥-2 lub x≥2
b)
x²-4x+4-x+1\2 > -(2x+4+x²+2x)
2(x²-4x+4)-x+1 \ 2 > -x²-4x-4
2x²-9x+9\2 > -x²-4x-4
2x²-9x+9 > 2(-x²-4x-4)
2x²-9x+9 > -2x²-8x-8
4x²-x+17 >0