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Pupsik228
@Pupsik228
July 2022
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Решите уравнение:
X·(X-10)=56
X·(X+16)=80
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Answers & Comments
yellok
X(x-10)=56
x²-10x-56=0
D=10²+4*56=100+224=324
x(1)=(10+18)/2=28/2=16
x(2)=(10-18)=-8/4=-4
x(x+16)=80
x²+16x-80=0
D=16²+4*80=256+320=576
x(1)=(-16+24)/2=8/2=4
x(2)=(-16-24)/2=-40/2=-20
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Answers & Comments
x²-10x-56=0
D=10²+4*56=100+224=324
x(1)=(10+18)/2=28/2=16
x(2)=(10-18)=-8/4=-4
x(x+16)=80
x²+16x-80=0
D=16²+4*80=256+320=576
x(1)=(-16+24)/2=8/2=4
x(2)=(-16-24)/2=-40/2=-20