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Tom, Engineer
Category: Homework
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Experience:  Bio-engineer, expert in physics, chemistry and biology
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# point of intersections of 2 curves y 1/2 x3 + x2 +1 and y 9x2 - 57/2 x + 1

### Customer Question

point of intersections of 2 curves
y= 1/2 x3 + x2 +1 and
y= 9x2 - 57/2 x + 1
Submitted: 4 years ago.
Category: Homework
Expert:  Tom replied 4 years ago.

The points of intersection can be found for those values x when:

1/2 x³ + x² + 1 = 9x² - 57/2 x +1

=> 1/2 x³ - 8x² + 57/2x = 0

=> x (x² - 4x + 57) = 0

=> x = 0 (this is the only solution, since x²-4x+57 is greater than 0 for every x)

So there is 1 point of intersection for these 2 curves: the point (0,1)

Let me know if anything is unclear, otherwise please don't forget to click the "Accept"-button.

Best regards,

Tom

Tom, Engineer
Category: Homework
Satisfied Customers: 368
Experience: Bio-engineer, expert in physics, chemistry and biology
Customer: replied 4 years ago.
In the example that comes with this problem there is 3 points on the curve and not only 1 point
Expert:  Tom replied 4 years ago.

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