Answer:
Step-by-Step Step-by-step explanation:
Area of the base = length × breadth
= (4x + 5) (x + 3)
= 4x(x + 3) + 5(x + 3)
= 4x² + 12x + 5x + 15
= 4x² + 17x + 15
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Volume = length × breadth × height
8x³ + 30x² + 13x - 15 = (4x + 5)(x + 3) × h
![( 8x³ + 30x² + 13x - 15 )/((4x + 5)(x + 3)) = h](https://img.qammunity.org/2021/formulas/mathematics/high-school/m0qjgxxvj8eytely7w6fn1lim2wexnclaq.png)