6х²+7х=5
6х²+7х-5=0
D=7²-4×6×(-5)=49+120=169=13²
x1=(-7+13)/(6×2)=6/12=0,5
x2=(-7-13)/(6×2)=-20/12=-5/3
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6х²+7х=5
6х²+7х-5=0
D=7²-4×6×(-5)=49+120=169=13²
x1=(-7+13)/(6×2)=6/12=0,5
x2=(-7-13)/(6×2)=-20/12=-5/3