Question

5. The polynomial 2X^3 + 9x ^2+ 4X- 15 represents the volume in
Cubic feet of a rectangular holding tank at a fish hatchery, The
depth of the tank is X-1 feet. The Length of the tank is 13 feet.
What is the Length and breadth of the tank.​

Answer 1

Answer:

$2 {x}^{3} + 9 {x}^{2} + 4x - 15$

by using formula we can find root

-b +- √b^2-4ac/2a