<PRE><B>Question 1117502</B>
we know that
:
(x^2 +x -12) * (x +d) = x^3 + ax^2 -10x + b
:
(x -12) * (x +d) must give us -10x in the result so d = 2 and 
:
(x^2 +x -12) * (x +2) = x^3 +3x^2 -10x -24
:
a = 3 and b = -24
:
</PRE>