Question

What is the standard form of `y= (-2x-5)(-x-4)`?

Answer 1

Standard form is `y = a*x^2+b*x+c`

Explanation:

It is clearly observable that when right hand side is expanded, highest degree of `x` is `a*x^2+b*x+c`

In fact this becomes `-2x*(-x-4)-5*(-x-4)`

i.e. `2x^2+8x+5x+20`

i.e. `2x^2+13x+20`

From this it is obvious that the standard form is `y=a*x^2+b*x+c`