- Thread starter collier
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Some properties might be:

Associative for Addition or Multiplication

Commutative for Addition or Multiplication

Distributive Property of Multiplication over Addition

Are these ringing any bells?

d( -2d + 4) + 15d

Distributive Property of Multiplication over Addition

-2d^2 + 4d + 15d

Associative for Addition

-2d^2 + (4d + 15d)

-2d^2 + 19d

Which means?tkhunny said:Some properties might be:

Associative for Addition or Multiplication

Commutative for Addition or Multiplication

Distributive Property of Multiplication over Addition

Are these ringing any bells?

d( -2d + 4) + 15d

Distributive Property of Multiplication over Addition

-2d^2 + 4d + 15d

Associative for Addition

-2d^2 + (4d + 15d)

-2d^2 + 19d

- Joined
- Feb 4, 2004

- Messages
- 15,943

The tutor explained the entire process, both by naming the rules you need to use, and by showing all of the steps. It would be hard to make the explanation much more clear, and yet it seems to be making no sense to you, nor sounding at all familiar to you. This bespeaks a serious lack of background material.collier said:Which means?

You might want to consider having a serious talk with your academic counsellor regarding course placement, so that you can get the necessary foundational material. Once you have that, the step-by-step solution you have received will make perfect sense.

Good luck!

Eliz.