10-2 Multiplying Polynomials by Monomials

10-2 Multiplying Polynomials by Monomials

Monday, Oct. 19 /2020

Multiple Choice

Multiply the monomial and the polynomial:
 $-7x^2\left(x^3-2\right)=$  

•  $-7x^5+14x^2$  

•  $-7x^6+14x^2$  

•  $7x^5-14x^2$  

•  $7x^6-14x^2$  

Multiple Choice

Multiply, then combine like terms:
 $2x\left(3x+5\right)+3\left(3x+5\right)=$  

•  $6x^2+13x+8$  

•  $5x^2+13x+8$  

•  $18x+8$  

•  $6x^2+19x+15$  

Multiple Choice

Multiply the monomial by the polynomial:
 $4y^2\left(2y^3-5y-3\right)=$  

•  $8y^5-20y^3-12y^2$  

•  $8y^5+20y^3+12y^2$  

•  $6y^5-1y^3+1y^2$  

•  $6y^6-20y^3-12y^2$  

Multiple Choice

Multiply the monomial and the polynomial:
 $2x\left(3x^2+5x-7\right)=$  

•  $5x^3+7x^2-5x$  

•  $6x^3+10x^2-14x$  

•  $3x^2+7x-7$  

•  $-6x^3-10x^2+14x$  

Multiple Choice

Multiply by distributing:
 $2\left(3x+8\right)=$  

•  $5x+10$  

•  $6x^2+16$  

•  $6x+16$  

•  $5x^2+10$  

Multiple Choice

Multiply, then combine like terms.
 $5a\left(4-6x\right)-3x\left(2+a\right)=$  

•  $20a-27ax-6x$  

•  $20a+23ax+6x$  

•  $9a-14ax-x$  

•  $9a+14ax+6x$  

Multiple Choice

Multiply, then combine like terms:
 $2\left(x-1\right)-3x\left(4x-7\right)=$  

•  $16x-2$  

•  $12x^2-19x-2$  

•  $12x^2-23x+2$  

•  $-12x^2+23x-2$  

Multiple Choice

Multiply, then combine like terms:
 $-2\left(-4y+3x-1\right)+2\left(-2y+4x+2\right)=$  

•  $4y+2x+6$  

•  $12y+14x+3$  

•  $-4y-2x-6$  

•  $-6y+7x+1$  

Multiple Choice

Multiply, then combine like terms:
 $x^2\left(5x+3\right)+2x\left(4x-1\right)+3\left(-2x+4\right)=$  

•  $5x^3+11x^2-8x+12$  

•  $5x^3+11x^4-8x^2+12$  

•  $-5x^3-11x^2+8x-12$  

•  $5x^2+11x+4$  

Open Ended

Read this question, and try to submit the answer.

Multiple Choice

4 - 8(2k - 1) = 14k

• 2/5

• -2/5

• 2/15

• -2/15

Multiple Choice

5u - 7(2 - 3u) = 12

• -26/17

• 13/4

• -13/4

• 1

Multiple Choice

9x - 2(x + 8) = -2

• -10/7

• -18/7

• -2

• 2

Multiple Choice

5(x - 4) = 16 - 2(1 - 2x)

• -6

• - 2/3

• 34

• 34/9

Multiple Choice

3(2e + 5) + 8(1 - e) = 1

• 11

• - 11

• 13

• - 13

Multiple Choice

-10s = 30 - 2(7 + 6s)

• 5

• - 5

• - 8

• 8

Multiple Choice

3(2m + 1) + 5 = 2m

• 0

• - 1

• - 2

• 2

Multiple Choice

3(4r - 1) + 5 = 26

• -1

• 2

• -2

• 4

Multiple Choice

3x + 2 = 2(2x + 3)

• 4

• -4

• 1

• -1

Multiple Choice

4(y - 6) = 11 - y

• 7

• 17/5

• - 7

• - 17/5