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butalik [34]
3 years ago
7

Use expressions for odd integers to confirm the conjecture that the product for two odd integers is an odd integer.

Mathematics
1 answer:
Mandarinka [93]3 years ago
4 0

k, n - integers  

2k+1  - an odd integer

2n+1  - another odd integer

The product of them:

  (2k + 1)(2n + 1) =

= 4kn + 2k + 2n + 1 =

= 2(2kn + k + n) + 1

The product of integers (2kn) is integer

and the sum of them (2kn+k+n) also is integer

So  (2k + 1)(2n + 1)  = 2(2kn + k + n) + 1  is an odd integer

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Step-by-step explanation:

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A plank of wood is 220 cm long.I cut it in 14cm pieces. what lenght of wood i will have left over?
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220 / 14 gives us 15.

You have to understand that this means 15 whole 14 cm pieces and a Length of 1 piece.

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brainly.com/question/2217700

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I'm guessing this is the question you meant to ask:

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