2x²-14x=0
a=2 b=14 c=0
D=b²-4ac= 14²-4×2×0= 196 =14²
x₁ = -b-√D/2a = -14-14/2×2 = -28/4= -7
x₂ = -b+√D/2a = -14+14/2×2= 0/4 = 0
Ответ: -7; 0
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2x²-14x=0
a=2 b=14 c=0
D=b²-4ac= 14²-4×2×0= 196 =14²
x₁ = -b-√D/2a = -14-14/2×2 = -28/4= -7
x₂ = -b+√D/2a = -14+14/2×2= 0/4 = 0
Ответ: -7; 0