Question

A_______is an algebraic expression made by adding or subtracting terms

has to be 10 letters

Answer 1

POLYNOMIAL is a 10-letter word

Explanation:

A polynomial is such an expression.

Virtually any kind of algebraic expression is made by adding or subtracting terms, grouping them, applying functions to them, or dividing them. (A term is already a product; increasing the number factors doesn't change that.)

A polynomial is a special kind of sum-of-terms expression involving terms that are non-negative integer powers of a variable.