Question

Obtain the volume of a rectangular box with the length, breadth , and height, respectively ( 2x + 1),

(x – 1), (5x).​

Answer 1

Answer:

10x³ - 5x² - 5x or  5x(2x² - x - 1) cubic units

Step-by-step explanation:

Volume of cuboid = length * breadth * height

Vol = (2x + 1)*(x-1)*5x

Vol = (2x² - 2x + x - 1) * 5x => (2x² - x -1 ) * 5x

Vol = 10x³ - 5x² - 5x = 5x(2x² - x - 1) cubic units