Respuesta :

Nayefx

Answer:

-1

Step-by-step explanation:

to understand this

you need to know about:

  • quadratic function

given:

  • a=1
  • b=2

let's solve:

  1. [tex] \sf sustitute \: the \: value \: of \: a \: and \: b : \\ \sf \frac{ - (2)}{2.1} [/tex]
  2. [tex] \sf simplify \: parentheses : \\ \sf \frac{ - 2}{2.1} [/tex]
  3. [tex] \sf simplify \: multiplication : \\ \sf\frac{ - 2}{2} [/tex]
  4. [tex] \sf simplify \: divition : \\ - 1[/tex]

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