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NoName0109
@NoName0109
August 2021
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Решите данный пример
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ЯгодкаЯлесная
А=4; b=2√7; с=1
D=b²-4ac=(2√7)²-4*4*1=28-16=12
√D=√12=√(2²*3)=2√3
x₁=(-b-√D)/2a=(-2√7-2√3)/8=(-2(√7-√3))/8=-(√7-√3)/4
x₂=(-b+√D)/2a=(-2√7+2√3)/8=(-2(√7+√3))/8=-(√7+√3)/4
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eli34
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Answers & Comments
D=b²-4ac=(2√7)²-4*4*1=28-16=12
√D=√12=√(2²*3)=2√3
x₁=(-b-√D)/2a=(-2√7-2√3)/8=(-2(√7-√3))/8=-(√7-√3)/4
x₂=(-b+√D)/2a=(-2√7+2√3)/8=(-2(√7+√3))/8=-(√7+√3)/4