Question
Find the maximum value of the quadratic functions(a) $-x^2+3 x y-5 y^2-x+1$,(b) $-2 x^2+6 x y-3 y^2+4 x-3 y$.
Step 1
### Part (a): $-x^2 + 3xy - 5y^2 - x + 1$ ** Show more…
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