jjarandson02 jjarandson02
  • 29-10-2019
  • Mathematics
contestada

x² + 3x – 7=0
Solve
X= or x=

Respuesta :

vadergab17
vadergab17 vadergab17
  • 29-10-2019

Answer:

x = 2

Step-by-step explanation:

X² = 3x - 7 = 0

X² = 3x = 7

(x + 1) (x + 2) = 7

(x + 1) + x = 7 - 2

x + x = 7 - 3

2x = 4

x = 4/2

x = 2

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