1) Which sum best represents the model shown below?
There are 3 blue blocks, and each of them separately equal x^2.
There are 2 green blocks that each separately equal x.
There are 2 red blocks that each separately equal -1.
And there is 1 yellow block that equals 1.
Please help, I am confused on how to solve this.
My answer is A. Is that correct?posted by sasha