O volume do paralelepípedo determinado pelos vetores u = - 2i + 3j + k , v = i + 2j + 4k e w = i – j + 2k é igual a : 10 pontos
A) 14 u. v.
B) 21 u. v.
C) 6 u. v.
D) 17 u. v
E) 13 u. v.

sorry, i can't understand your question. will later if you describe more clearly!

: )

(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