Mathematics (2019) Grade(s): 09-12 - Precalculus

MA19.PRE.19

Add, subtract, multiply, and divide rational expressions.

Unpacked Content

Knowledge

Students know:
  • Techniques for performing operations on polynomials.

Skills

Students are able to:
  • Accurately perform addition, subtraction, multiplication, and division of rational expressions.

Understanding

Students understand that:
  • They can communicate a mathematical justification for all four operations on rational expressions being closed.
  • The structure of mathematics present in the system of rational numbers is also present in the system of rational expressions.

Vocabulary

  • Rational expression
  • Closed under an operation
  • Nonzero rational expression
  • Analogous
ALSDE LOGO