# RATL 2 | Lesson 2 | Standards

### Core Content Standards

CCSS.Math.Content.HSA.APR.D.7 (+) Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply, and divide rational expressions.

### Related Standards

CCSS.Math.Content.HSA.APR.D.6 Rewrite simple rational expressions in different forms; write $$\Large \frac{a(x)}{b(x)}$$ in the form $$q(x)+\Large\frac{r(x)}{b(x)}$$, $$a(x)$$, $$b(x)$$, $$q(x)$$, and $$r(x)$$ are polynomials with the degree of $$r(x)$$ less than the degree of $$b(x)$$, using inspection, long division, or, for the more complicated examples, a computer algebra system.

### Standards for Mathematical Practice

CCSS.Math.Practice.MP1 Make sense of problems and persevere in solving them.

CCSS.Math.Practice.MP2 Reason abstractly and quantitatively.

CCSS.Math.Practice.MP8 Look for and express regularity in repeated reasoning.