The engine displacement of an automobile is the volume through which the piston moves from high to low position. If an engine has "n" cylinders, the displacement is D = π(bore÷2)² • stroke • n, where the bore is the diameter of the cylinder and stroke is the length of the piston's travel. 1) If bore = and stroke = h, simplify the expression, D, in terms of k and h for 8 cylinders.

2) If the bore is 4 inches, the stroke is 3.4 inches, and the engine has four cylinders, what is the displacement? Round your answer to the nearest tenth of a cubic inch.

please help. I really want to understand.

check the picture below.

clock

step-by-step explanation:

answer: h

step-by-step explanation:

(x3 + 6x2 + 2x - 6) • (x - 1)

step-by-step explanation:

polynomial long division :

3.2     polynomial long division

dividing :   x4+5x3-4x2-8x+6

                              ("dividend")

by         :     x-1     ("divisor")

dividend     x4   +   5x3   -   4x2   -   8x   +   6

- divisor   * x3     x4   -   x3            

remainder         6x3   -   4x2   -   8x   +   6

- divisor   * 6x2         6x3   -   6x2        

remainder             2x2   -   8x   +   6

- divisor   * 2x1             2x2   -   2x    

remainder               -   6x   +   6

- divisor   * -6x0               -   6x   +   6

remainder                     0

quotient :   x3+6x2+2x-6   remainder:   0