herrera2463 herrera2463
  • 20-06-2017
  • Mathematics
contestada

Find the difference. k k2 − 9k + 20 − 5 k2 − 9k + 20

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CastleRook
CastleRook CastleRook
  • 28-06-2017
This is the concept of algebra, to get the difference of the expression given we proceed as follows;
(k^2-9k+20)-(k^2-9k+20)
collecting like terms we get:
(k^2-5k^2)+(-9k-9k)+(20-20)
=-4k^2-18k+0
=-4k^2-18k
The answer is (-4k^2-18k)
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