Question

The sum of two polynomials is why Z squared minus 3Z squared minus 4Y +4 if one of the palm will normally else is Y -4

Answer 1

Answer:
`3yz^2-5y-3z^2+7`

Explanation:

The complete exercise is:

"The sum of two polynomials is
`-yz^2 -3z^2-4y + 4`. If one of the polynomials is
`y - 4yz^2 - 3`, what is the other polynomial?"

By definition, the sum is the result of the addition.

According to the information given in the exercise, the polynomial
`-yz^2 -3z^2-4y + 4` is obtained by adding the polynomial
`y - 4yz^2 - 3` and another polynomial.

Then, you can find the other polynomial by subtracting
`y - 4yz^2 - 3` from
`-yz^2 -3z^2-4y + 4`:

`(-yz^2 -3z^2-4y + 4)-(y - 4yz^2 - 3)`

So, the steps are:

1. You must distribute the negative sign:

`=-yz^2 -3z^2-4y + 4-y + 4yz^2+ 3`

2. Finally, you need to add the like terms:

`=3yz^2-5y-3z^2+7`