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Dashul
@Dashul
July 2022
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помогите пожалуйста решить))8 класс,отмечу лучшее
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GreatFilter
D=b₂-4ac
х²-11х-60=0
D=(-11)²-4* (-60)=121+240=361
5x²-18x+16=0
D=(-18)²-4*5*16=324-320=4
-4x²+7x+2=0
D=7²-4*(-4)*2=49+32=81
25=26x-x²
-x²+26x-25=0
D=26²-4*(-25)*(-1)=676-100=567
(x+1)²=7918-2x
x²+2x+1=7918-2x
x²+2x+2x+1-7918=0
x²+4x-7917=0
D=4²-4*(-7917)=16+31668=31684
6x²-16x=0
6x²-16x=0
2x(3x-8)=0
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Answers & Comments
х²-11х-60=0
D=(-11)²-4* (-60)=121+240=361
5x²-18x+16=0
D=(-18)²-4*5*16=324-320=4
-4x²+7x+2=0
D=7²-4*(-4)*2=49+32=81
25=26x-x²
-x²+26x-25=0
D=26²-4*(-25)*(-1)=676-100=567
(x+1)²=7918-2x
x²+2x+1=7918-2x
x²+2x+2x+1-7918=0
x²+4x-7917=0
D=4²-4*(-7917)=16+31668=31684
6x²-16x=0
6x²-16x=0
2x(3x-8)=0