Alexandraprieto01 Alexandraprieto01
  • 07-11-2019
  • Mathematics
contestada

X2 + y2 =25 2x + y = 10

Respuesta :

xuanfu32 xuanfu32
  • 02-03-2021

Answer:

y=2[tex]x^{2}[/tex]-40

Step-by-step explanation:

[tex]x^{2}[/tex]+[tex]y^{2}[/tex]=25  

2x+y=10 y=-2x+10

y=25-[tex]x^{2}[/tex] y=-(x+5)(x-5) plug in to the secound function  

2(x+5)(x-5)+10=y

y=2([tex]x^{2}[/tex]-25)+10

y=2[tex]x^{2}[/tex]-50+10

y=2[tex]x^{2}[/tex]-40

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