October 2018 1 99 Report
Akar - akar persamaan kuadrat 2x²+2x-7=0 adalah x₁ dan x₂ nilai dari  \frac{ x_{1} }{ x_{2} } + \frac{ x_{2} }{ x_{1} } adalah

jawab
2x²+2x-7 =0
a=2, b=2 c = -7
hingga
x₁+x₂ =- \frac{b}{a} =- \frac{2}{2} =-1
x₁.x₂ =  \frac{c}{a}= \frac{-7}{2}


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