1.

The value of which of the following expressions is 66 for \[a=-2~\]and \[b=5?~\]

A. \[{{a}^{2}}+3ab-{{b}^{2~}}\]  
B. \[6{{a}^{2}}-5ab\]
C. \[-3{{a}^{2}}-ab+6{{b}^{2}}\]
D. \[-{{a}^{2}}-2ab+2{{b}^{2}}\]
Answer» E.


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