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## Homework Statement

Minimize 2x²+2y²-2xy-9y subject

4x + 3y =,< 10 ,

y - 4x² =,< -2

x >,= 0

and y >,= 0.

I don't undersant this:

"This equation has no nonnegative root, which contradicts a nonnegativity

constraint."

and how we solve

-16x² + 2x + 17 + h2 = 0