StacyMoree StacyMoree
  • 18-03-2020
  • Mathematics
contestada

Solve.
−x^2 = 2x − 15

A) x = 3, x = 5
B) x = −3, x = 5
C) x = 3, x = −5
D) x = −3, x = −5

Respuesta :

oliviajseger
oliviajseger oliviajseger
  • 18-03-2020

Answer:

C) x = 3, x = -5

Step-by-step explanation:

[tex]-x^{2} =2x-15[/tex]

[tex]-x^{2} + 2x =-15[/tex] = -x^2+2x

[tex]x(-x+2)[/tex] = -15

Answer: x = 3, x = -5

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