Question

What is the standard form of `y= (x – 4)(x + 1)`?

Answer 1

`x^2-3x-4`
Have a look at how I split the multiplication!

Explanation:

Given:`" "color(brown)(color(blue)((x-4))(x+1)`

Write as`" "color(brown)(color(blue)(x)(x+1)color(blue)(-4)(x+1))`

`x^2+x-4x-4`

`x^2-3x-4`