What is the standard form of $y= (x+1)(4x-5)$ ?

Question

1426 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-05-27T03:14:19

The standard form of a polynomial function is obtained by multiplying everything with everything.

Use FOIL to help out.

First: $x xx 4x$

Outside: $x xx -5$

Inside: $1 xx 4x$

Outside: $1 xx -5$

Therefore, $y = 4x^2 - x - 5$

Hopefully this helps!

What is the standard form of y= (x+1)(4x-5) y= (x+1)(4x-5) ?