mzaudi738 mzaudi738
  • 16-01-2022
  • Mathematics
contestada

One of the roots of the equation x²-5x +q=0 is 2. Find the other root and the value of the coefficient q.

Respuesta :

goddessboi goddessboi
  • 16-01-2022

Answer:

Other root: [tex]x=3[/tex]

[tex]q=6[/tex]

Step-by-step explanation:

If [tex]x=2[/tex], then [tex]x-2=0[/tex].

Therefore:

[tex]x^2-5x+q=0[/tex]

[tex]2^2-5(2)+q=0[/tex]

[tex]4-10+q=0[/tex]

[tex]-6+q=0[/tex]

[tex]q=6[/tex]

This means that the other root is [tex]x=3[/tex] since [tex](x-2)(x-3)=x^2-5x+6[/tex]

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