GreenSquad14 GreenSquad14
  • 08-07-2017
  • Mathematics
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Factor to find the zeros of the function defined by the quadratic expression. −7x2 − 91x − 280

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mathmate
mathmate mathmate
  • 08-07-2017
There are no zeroes for an expression, only for equations.
Assuming equation to be
−7x^2 − 91x − 280=0
-7(x^2+13x+40)=0
-7(x+8)(x+5)=0
by the zero product properties, 
x+8=0 => x=-8
or 
x+5=0 => x=-5
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