brianisshort brianisshort
  • 16-10-2018
  • Mathematics
contestada

what minus what equals 43
I need help

Respuesta :

Аноним Аноним
  • 16-10-2018

(n + 1)^2  - n^2   = 43   simplify

 

n^2 + 2n + 1 -  n^2  = 43

 

2n + 1 = 43     subtract 1 from both sides

 

2n  = 42       divide both sides by 2

 

n  = 21

 

So  .....n + 1 = 22

 

Proof

 

22^2   - 21^2  =

 

484 - 441  =

or 43-0=43

mark brailiest please it would help alot

:)

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puguin
puguin puguin
  • 16-10-2018
100-57 is the answer to your question
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