X²+7/2=4x // *2
2x²+7-8x=0
2x²-8x+7=0
D=64-56=8
VD=2√2
X1=(8-2√2)/4= (4-√2)/2
X2=(8+2√2)/4=(4+²2)/2
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X²+7/2=4x // *2
2x²+7-8x=0
2x²-8x+7=0
D=64-56=8
VD=2√2
X1=(8-2√2)/4= (4-√2)/2
X2=(8+2√2)/4=(4+²2)/2