Question

Please need help asap ​

Answer 1

First expression correspond to equation B.

Second expression correspond to equation D.

Third expression correspond to equation A.

Explanation:

1. First equation can be written as:
   `4 x^3 - 4 + 7x - 2 x^3 + x +8` which is a consequence of applying distributive property related to multiplication. Then, groupping terms allow us to reach the result
   `2 x^3 + 8x +4`.
2. Second equation is all about grouping terms of equal power, which means working with
   `-3 x^2 + x^4 +x + 2 x^4 -7 + 4x`. We can sum up
   `2 x^4` with
   `2 x^4`, which yields in
   `3 x ^4` and
   `x` with
   `4 x` which yields
   `3 x^4 - 3x^2 + 5x -7`
3. Third equation can be rearranged by applying distributive property:
   `(x^2 -2x) (2x +3) = 2x^3 -4x^2 + 3x^2 - 6x`. Grouping the terms that have the same power yields to the final expression
   `2x^3 + x^2 - 6x`