SOLUTION: SOlve this system by graphing y=2x²-8x+8 y=-5(x-2)²+4

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Question 1158297: SOlve this system by graphing
y=2x²-8x+8
y=-5(x-2)²+4
Found 2 solutions by solver91311, Boreal:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


.

However, this is a bad answer. You need to zoom way in to see that it is off by one in the second decimal place. The smaller x-value is approximately 1.2449 rather than 1.25, for example


John

My calculator said it, I believe it, that settles it

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
graph%28300%2C300%2C-10%2C10%2C-100%2C100%2C2x%5E2-8x%2B8%2C5%28x-2%29%5E2%2B4%29
No solutions
2x^2-8x+8=2(x^2-4x+4)=2(x-2)^2
this is not equal at any place to 5(x-2)^2+4
you get 3x^2-12x+16=0
that has a discriminant of -48.