alexup1 alexup1
  • 10-07-2020
  • Mathematics
contestada

Which are the solutions of x2 = –7x – 8?

Respuesta :

PollyP52 PollyP52
  • 10-07-2020

Answer:

x = -3.5  ± √17/2

or

x =  -1.44, -5,56 to the nearest hundredth.

Step-by-step explanation:

x^2 = –7x – 8

x^2 + 7x + 8 = 0

Using the quadratic formula:

x = [-7 ± √(7^2 - 4*1*8)] / 2

x = -3.5  ± √17/2

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