Divide. use rectangular models to record the partial quotients 246_3

82

Step-by-step explanation:  

Since, we have to divided 246 by 3.

First divide 246 by 3, our quotient is 80 and reminder is 6.

Again, divide 6 by 3, our quotient is 2 and reminder is 0.

After getting 0 we will  add all the quotient,

And, the sum is our answer.

Which is 80+2 = 82.    

Thus, our required answer is 82.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

b

step-by-step explanation: