Given the polynomial:
7
x
2
+
8
y
2
−
2
x
y
−
6
\displaystyle {7}{x}^{{2}}+{8}{y}^{{2}}-{2}{x}{y}-{6}
7
x
2
+
8
y
2
−
2
x
y
−
6
Evaluate the polynomial for x = -1.8 and y = 0.2
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