2x方减x加十六分之一等于0用公式法解
人气:425 ℃ 时间:2019-10-19 18:31:42
解答
2x²+x+16分之1=0
a=2,b=1,c=16分之1
Δ=1²-4×2×16分之1=2分之1
x=4分之(-1±√Δ)
x=4分之(-1±2分之√2)
x=-4分之1±8分之√2
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