HELP! 'If x=(-b)/(2a), find x'

Question

HELP!
'If x=
`(-b)/(2a)`, find x'

Answer 1

-1

Explanation:

to understand this

you need to know about:

• quadratic function

given:

• a=1
• b=2

let's solve:

1. 
   `\sf sustitute \: the \: value \: of \: a \: and \: b : \\ \sf ( - (2))/(2.1)`
2. 
   `\sf simplify \: parentheses : \\ \sf ( - 2)/(2.1)`
3. 
   `\sf simplify \: multiplication : \\ \sf( - 2)/(2)`
4. 
   `\sf simplify \: divition : \\ - 1`