trrentm trrentm
  • 23-02-2021
  • Mathematics
contestada

Solve the quadratic formula

X^2-5x-14=0

Respuesta :

devishri1977
devishri1977 devishri1977
  • 24-02-2021

Answer:

Step-by-step explanation:

Sum = -5

Product = -14

Factors = 2 , (-7)      because 2*(-7) = -14 and 2 + (-7) = -5

x²  - 5x - 14 = 0

x² + 2x - 7x - 14 = 0

x(x + 2) -7(x + 2) = 0

(x + 2)(x - 7) =0

x + 2 = 0           ;  x -7 =0

     x = -2  ;            x  = 7

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