itsjessxoxo itsjessxoxo
  • 12-03-2017
  • Mathematics
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Please help. I'm struggling with simultaneous equations. I have till tomorrow to do it

Please help Im struggling with simultaneous equations I have till tomorrow to do it class=

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Аноним Аноним
  • 12-03-2017
I hope this helps you



1)


y=6


x^2+6^2=25


x^2=25-36


x^2= -9


x^2=i^2.9


x=3i there's no real solution



2)


x^2+(2x-2)^2=25


x^2+4x^2-8x+4=25


5x^2-8x=21


5x^2-8x-21=0


5x +7



x -3


(5x+7)(x-3)=0


x= -7/5


x=3
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