Question

A) If the volume of a cuboid is 20 and whose length, breadth and height are (x + 1), (x + 2) and (x + 3) rospectively, then find a cubic polynomial.​

Answer 1

Answer:

x = 0.83713 approx

Step-by-step explanation:

Volume of cuboid = l * b * h

Therefore, let cubic polynomial = x

Therefore, (x + 1) * (x + 2) * (x + 3) = 20

x^3 + 6x^2 + 11x + 6 = 20

x^3 + 6x^2 + 11x + 6 - 20 = 20 - 20

x^3 + 6x^2 + 11x + 6 - 20 = 0

x^3 + 6x^2 + 11x - 14 = 0

Therefore, x = 0.83713 approx

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