Nur07rans
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x2-4x-7=0 Çözüm Kümesi ??                          

Sagot :

Severus52rans

Δ=b²-4ac

Δ=(-4)²-4.1.(-7)

Δ=16+28=44

 

kökler= -b+kökΔ/-2a    -b-kökΔ/-2a

 

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