Answer
$2x^3-11x^2+3x+30$
Work Step by Step
$(2x-5)(x^2-3x-6)=2x(x^2-3x-6)-5(x^2-3x-6)=2x^3-6x^2-12x-5x^2+15x+30=2x^3-11x^2+3x+30$
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