dmarieweaver9085 dmarieweaver9085
  • 08-11-2017
  • Mathematics
contestada

How many real solutions does the system have? y=−3x−1y=x2−3x+4?

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rgwoot
rgwoot rgwoot
  • 11-11-2017
Set the equations to equal each other:
x²-3x+4=-3x-1
x²-3x+3x+4=-3x+3x-1
x²+4=-1
x²+4-4=-1-4
x²=-5
√x²=√-5
x=-√5i and x=√5i

There are no real solutions.
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