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albinasupper204
@albinasupper204
July 2022
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Пожалуйста помогите прошу вас даю 20 баллов (((
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прр40
3x-2y=15
x/y + y/x+2=0 *xy
3x-2y=15 :2
x²+y²+2xy=0
1,5x-y=7,5. *(-1)
x²+y²+2xy=0
-1,5x+y= -7,5
x²+y²+2xy=0
y=1,5x-7,5
x²+( 1,5x-7,5)²+2x( 1,5x-7,5)=0
y=1,5x-7,5
x²+2,25x²-22,5x+5625+3x²-15x=0
y=1,5x-7,5
6,25x²-37,5x+5625=0. *100
y=1,5x-7,5
625x²-3750x+562500=0
y=1,5x-7,5
x²-6x+900=0
нет корней
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Answers & Comments
x/y + y/x+2=0 *xy
3x-2y=15 :2
x²+y²+2xy=0
1,5x-y=7,5. *(-1)
x²+y²+2xy=0
-1,5x+y= -7,5
x²+y²+2xy=0
y=1,5x-7,5
x²+( 1,5x-7,5)²+2x( 1,5x-7,5)=0
y=1,5x-7,5
x²+2,25x²-22,5x+5625+3x²-15x=0
y=1,5x-7,5
6,25x²-37,5x+5625=0. *100
y=1,5x-7,5
625x²-3750x+562500=0
y=1,5x-7,5
x²-6x+900=0
нет корней