ellstylr123 ellstylr123
  • 08-05-2020
  • Mathematics
contestada


How many solutions does x2 - 10x = -25 have?


Ox={-5,5)
O no real solution
Ox={-5)
Ox={5}

Respuesta :

WVGman WVGman
  • 08-05-2020

To solve, first add 25 to both sides to get

[tex] {x}^{2} - 10x + 25 = 0[/tex]

Then factor to get

[tex](x - 5)(x - 5) = 0[/tex]

[tex]x - 5 = 0[/tex]

[tex]x = 5[/tex]

There is only one solution, x = 5.

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