45. Which shows correct factors for the following equation and identifies the zero(s).

Question

Which shows correct factors for the following equation and identifies the zero(s).

 

y = 4x² – 16

I got the anwser:

y = (2x + 4)(2x – 4); (-2, 0), (2, 0)

Answer 1

You are technically correct!

4x^2 - 16 =

4(x^2 - 4)

4( x + 2 )( x - 2 )

So the zeros are +-2

Notice in your answers, you can

factor out a 2 from each one, which

gives the same answer as mine.