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

Question

6636 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-02-22T20:28:33

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

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

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

$x^2+x-4x-4$

$x^2-3x-4$

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