Mathematics
Oliveamarie02
19

What 2 numbers multiply to get -216 and add together to get 6

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scalderon6246

One No. = x  Other No. = y  xy = 6 ................ Eq. 1  x + y = - 5, or  y = - x - 5 ............Eq. 2  Subbing (- x - 5) from Eq. 2  for y in Eq. 1,  x(- x - 5) = 6  - x² - 5x = 6  x² + 5x = - 6  x² + 5x + 6 = 0  (x + 2)(x + 3) = 0  If the product of two factors equals zero,  then one or both factors equal zero.  If x + 2 = 0,  x = - 2  If x + 3 = 0,  x = - 3  The two numbers are - 2 and - 3. 

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