Ambergabe2014 Ambergabe2014
  • 12-02-2017
  • Mathematics
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Whats the expression y^2+7y+12

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kaevras
kaevras kaevras
  • 12-02-2017
We can find the value of y in the expression y² + 7y + 12 by factorising.


Make the expression equal to zero.

y
² + 7y + 12 = 0


Factorise.

(y + 3)(y + 4) = 0


So either (y + 3) = 0 or (y + 4) = 0


When (y + 3) = 0, y would be -3.

When (y + 4) = 0, y would be -4.
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