mdaley12 mdaley12
  • 28-04-2016
  • Mathematics
contestada

What times what equals 21 but adds up to -22

Respuesta :

nathan127
nathan127 nathan127
  • 29-04-2016
Let "what" and "what" be A and B

Put this in an algebraic equation
A * B = 21
A + B = -22

A must = -21 and B must = -1   , this is because two negatives multiply to make a positive

A + B = -22    ,  -21 +-1 = -22 

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