Question

the process of combining like terms in polynomial addition or subtraction is referred to as _____________.

in subtraction of polynomials, the first step is to change the _____________ of the polynomial being subtracted.

the highest exponent of a variable in a polynomial is known as the _____________ of the polynomial.

Explanation:

1. This is the standard term for the process of merging terms with identical variable and exponent combinations in polynomial operations.
2. In polynomial subtraction, you rewrite the operation as adding the additive inverse, which requires flipping the sign of every term in the subtracted polynomial.
3. The degree of a polynomial is formally defined as the highest power of the variable present in the polynomial.

Answer:

1. Combining like terms
2. Sign (or signs)
3. Degree