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\begin{array} { l } { \text { If } p ( x ) = x ^ { 3 } + 2 x ^ { 2 } - 5 x - 6 , \text { find } p ( 2 ) , p ( - 1 ) , p ( - 3 ) \text { and } p ( 0 ) . \text { What } } \\ { \text { do you conclude about the zeros of } p ( x ) ? \text { Is } 0 \text { a zero of } p ( x ) ? } \end{array}

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