We see that $10x^2-x-24=(5x-8)(2x+3)$, thus $A = 5$ and $B = 2$. Hence, $AB + B = \boxed{12}.$
Question:
The expression $10x^2-x-24$ can be written as $(Ax-8)(Bx+3),$ where $A$ and $B$ are integers. What is $AB + B$?
Answer:
Let's think step by step.

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12
The expression $10x^2-x-24$ can be written as $(Ax-8)(Bx+3),$ where $A$ and $B$ are integers. What is $AB + B$?
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