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12-06-2022
Mathematics

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y=8-x
2x^2 + xy= -16

this is A simultaneous equation

Respuesta :

mani82ebra mani82ebra

12-06-2022

Answer:

y=8-x→y+x=8

2x²+xy=-16→x²+xy=-x²-16

→x(x+y)=-x²-16→8x=-x²-16→x²+8x+16=0

→(x+4)²=0→x=-4→y=12

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