The ratio of white chocolate to dark chocolate sold at a candy shop was 5 : 4. If there were 35 bars of white chocolate sold, how many bars of dark chocolate were sold?

Step-by-step explanation:

White choco: 5

dark choco: 4

5 x 7 = 35

so you have to do 7 x 4

7 x  4 = 28

if 35 boxes of white choco were sold there were 28 boxes of dark choco

the graph on the bottom right

(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