How do you factorise 2p²-8p?

Answer 1

10

Answer 2

What do 2 and 8 share? 2, and p.

8 / 2 = 4

2 / 2 = 1

Put 2p outside the brackets, because they share 2 and p! Then put 1 and 4 inside the brackets, because that was your result when you divided. Remember to write -4, because the equation says -8p! It has to stay negative.

2p(1-4)

Now, since it's 2p^2, you have to add a p to the 1.

So the answer would be: 2p(p-4)

You could also write: p(2p-8)