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(x+x+1)2-10(x+x)+11=0
(2x+1)2-10*2x+11=0
4x+1-20x+11=0
4x-20x=-1-11+0
-16x=-12 /:(-16)
X=0,75
2)-2 do potęgi siedemnastej x²-6 do ósmej+ 3 do szesnastej=0
(-2)17+(x2-6)8+316=0
-50855936+x+1679616+129140163=0
X=50855936-1679616-12914016
X=36262304
x⁴+x²+1-10x²+10x+11=0
x⁴+x²-10x²+10x=-11-1
x⁴-9x²+10x=-12