Объяснение:
3х²+16х-12=0
D=256-4×3×(-12)=256+144=400
x1=-16-20/6=-36/6=-6
x2=-16+20/6=4/6=2/3
10-13x-3x²=0
D=169-4×(-3)×10=169+120=289
x1=13-17/6=-4/6=-2/3
x2=13+17/6=30/6=5
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Объяснение:
3х²+16х-12=0
D=256-4×3×(-12)=256+144=400
x1=-16-20/6=-36/6=-6
x2=-16+20/6=4/6=2/3
10-13x-3x²=0
D=169-4×(-3)×10=169+120=289
x1=13-17/6=-4/6=-2/3
x2=13+17/6=30/6=5