Pre Algebra

5. (m^2-m-3)+(m-4)
A. m^2+m-1
B. m^2+2m-7
C. m^2-7
D. m^2-1

6. (4x^2-2x-1)-(-3x^3+2)
A. -3x^3+4x^2-2x+1
B. -3x^3+4x^2-2x-3
C. 3x^3+4x^2-2x+1
D. 3x^3+4x^2-2x-3

9. 100^12/100^8
A. 100^12/8
B. 100^96
C. 100^4***
D. 100^20

16. (1.1*10^-5)(3*10^-2)
A. 4.1*10^-7
B. 4.1*10^10
C. 3.3*10^-7
D. 3.3*10^10

19. 3k^2(-2k^2-4k+7)
A. -6k^3-k+10k
B. -6k^4-12k^3+21k^2
C. k^4-k^3+10k^2
D. 6k^4--12k^3+10k^2

20. (2k+3)(k-1)
A. 2k^2+k-3
B. 2k^2+k+2
C. 2k^2-k-3
D. 2k^2-k+2

21. (-y+4)(2y-1)
A. 2y^2+7y+3
B. 2y^2+5y-4
C. -2y^2+9y-4
D. -2y^+6y+3

Thank you to who ever helps!!! I have a harder time with these!!!

  1. 👍 0
  2. 👎 0
  3. 👁 431
  1. 5C
    6D
    9 correct
    16C
    19B
    20A
    21C

    Review your methods and try them till you get these answers.

    1. 👍 0
    2. 👎 0
    posted by Steve

Respond to this Question

First Name

Your Response