Seudónimo Seudónimo
  • 03-05-2017
  • Mathematics
contestada

what is the answer to this problem.

what is the answer to this problem class=

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BeautifulAfflictions
BeautifulAfflictions BeautifulAfflictions
  • 03-05-2017
2y^2 - y - 1 = 0
(2y + 1) (y - 1) = 0 
2y + 1 = 0    or    y - 1 = 0
y = -1/2        or    y = 1
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Аноним Аноним
  • 03-05-2017
When you factor this, you should get ( y - 1 )( 2y + 1 ) One of these inside the parenthesis has to equal 0, so the answer is either 1 or -1/2.
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