Find the value of the following expression at \[\mathbf{a}\text{ }=\text{ }-\text{ }\mathbf{2}\text{ }\mathbf{and}\text{ }\mathbf{b}\text{ }=\text{ }-\text{ }\mathbf{3}\]. |
\[{{\mathbf{a}}^{\mathbf{3}}}+\text{ }\mathbf{3}{{\mathbf{b}}^{\mathbf{2}}}-\text{ }\mathbf{3ab}\text{ }+\text{ }\mathbf{5a}{{\mathbf{b}}^{\mathbf{2}}}~~~~~\] |
A) -75
B) -89
C) 39
D) 68
E) None of these
Correct Answer: B
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