Savannah7834 Savannah7834
  • 22-05-2019
  • Mathematics
contestada

Write an equation for each problem. The square of a number is 8 more than twice the number.

Respuesta :

calculista
calculista calculista
  • 05-07-2019

Answer:

The equation is equal to

[tex]x^{2}=2x+8[/tex]

Step-by-step explanation:

Let

x -----> the number

we know that

The equation that represented the problem is equal to

[tex]x^{2}=2x+8[/tex]

[tex]x^{2}-2x-8=0[/tex]

Solve the quadratic equation by graphing

The solution are x=-2 and x=4

see the attached figure

therefore

The number can be -2 or 4

Ver imagen calculista
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