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Cupcakejam
Cupcakejam Cupcakejam
  • 25-05-2016
  • Mathematics
Answered

Simplify the expression, Please help!!

  1. -x(7x - 8)

A: 6x^2 - 9x

B: -7x - 8x

C: -7x^2 + 8x

D: 7x + 8x

  1. 3k^3(-2k^2 - 4k + 7)

A: -6k^3 - k + 10k

B: -6k^4 - 12k^3 + 21k^2

C: k^4 - k^3 + 10k2

D: 6k^4 - 12k^3 + 10k^2

  1. (2k + 1) (k - 4)

A: 2k^2 - 7k + 4

B: 2k^2 - 3k + 4

C: 2k^2 + 9k + 4

D: 2k^2 - 7k - 4

  1. (-2y + 5) (y + 3)

A: -2y^2 + 8y + 15

B: -2y^2 - y + 15

C: 2y^2 + 8y + 8

D: 2y^2 - y + 8

Verified Answer :

Zioh
Zioh Zioh
  • 25-05-2016

For the first one it would be C.

Answer Link

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