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-x²-x+2=3x²+10x+8
4x²+11x+6 = 0
delta= 25 Vdelta = 5
x' = -3/4 x" = -2
-x²-x+2=3x²+10x+8
4x²+11x+6 = 0
delta= 25 Vdelta = 5
x' = -3/4 x" = -2