jasmin7570 jasmin7570
  • 19-11-2019
  • Mathematics
contestada

solve X²-5X-14=0 using quadratic formula

Respuesta :

nzeamaluchima
nzeamaluchima nzeamaluchima
  • 19-11-2019

Answer:

x=-2 or x=7

Step-by-step explanation:

X²-5X-14=0  find the factors of -14x² which is -7x and +2x

X² -7x + 2x - 14 = 0   factorize

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

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

x+2 = 0 or x-7= 0

x=-2 or x=7

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