Question

What is the standard form of `y= (x + 2)(x – 4)`?

Answer 1

`y=x^2-2x-8`

Explanation:

`"the equation of a parabola in "color(blue)"standard form"` is.

`•color(white)(x)y=ax^2+bx+c color(white)(x);a!=0`

`"expand the factors using FOIL"`

`y=x^2-4x+2x-8`

`color(white)(y)=x^2-2x-8larrcolor(blue)"in standard form"`